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Finished Core project and an observation.
Posted by: KurtB
Date: May 01, 2017 06:00PM
I put the finishing touches on the new setup and couldn't be happier. For some reason the factory setup bothered my back and a more substantial arm cuff was a must. After taking it out for a couple test runs I noticed that going from id mask of 49 to 50 gave it a noticeable boost that seems to take place in all the discrimination modes. I usually don't use anywhere near that much disc. but I was just messing around being a new to me machine. I decided to do a little bench testing to see what was going on and this is what I found in all disc. modes. Air test distance dropped off gradually from 0 to 49. Only about an inch. At 50 it gains that inch back and about a quarter of an inch more. I only went up to 60 disc. but it stayed the same. Just wondering if it's just my machine or if all the Cores do that.




An interesting observation and read.
Posted by: Monte
Date: May 01, 2017 07:17PM
KurtB, I see you went to a straight rod design. I already have a bad back, top of the spine to the tail, but found the FORS CoRe to be quite comfortable for me, and a marked improvement over most of the detectors I used. All the TID models that is, from White's, Fisher, Teknetics and Minelab. All of those are gone now, and were within a few days to a couple of months after the CoRe took over the #1 spot in my arsenal 27½ months ago. I do notice that quite a few people are more fit than I am at their younger ages and spry health, but I also see quite a few who are older and/or have health and mobility issues like me who add to the stress by using a too-extended rod set-up.

They stick the search coil way too far out in front, and that throws the balance off, and it also induces more fatigue trying to sweep the coil, not to mention this long-stretch rod technique also tends to induce a faster sweep over a much broader side-to-side sweep path. That also adds stress to the back, neck and shoulder. It also causes them to not overlap properly so it becomes a technique that causes a major loss of site coverage. Then, too, they can use too fast of a sweep in either or both higher mineralization challenges or dealing with an abundantly littered site.

Usually a most effective coil position for functional coverage and less fatigue is having it ±18 inches from your leading toe. Most of the time, for typical day-to-day searches, I sweep the coil across about a 30" to 36" path and a slow and methodical sweep speed, then overlap each pass by no less than maybe 50%. I move my feet as slow and I can to get efficient site coverage, and in some dense target areas, or when I encounter brush or weeds, etc., I pause and 'scribble' the search coil in and around brush and obstacles in case there is a masked, or partially masked, good non-ferrous target in the trash or vegetation.

Arm cups. Another topic that does pop up from time to time, and since we all have our likes and dislikes it only makes sense we get things as comfortable as we can handle. No modifications for me because I have used my two FORS CoRe, a Gold + and my three Relic units (all sporting different search coils) for urban Coin Hunting and in rough, uneven, sloping and rocky terrain when out Relic Hunting and the rod system, grip positioning and angle, and arm cups are very comfortable for me.

Bare arms, long sleeves, light sweatshirt, fleece jacket or bundled up for late fall & winter cold, I can comfortably fit my arm in the armcup and just lightly snug the arm strap up so there's no flop or wobble during the sweep, but my arm can easily slide out or comfortable get it back in w/o loosening the arm strap if I want to set the detector down during a recovery. My five Tesoro models are lighter and balance fine, but I can work any of my FORS series models for a longer hunt time and be more comfortable with them than any of my Makro Racer series models. The Impact is more comfortable for me with any coil than the Racers, but just a little more fatiguing than the FORS series models.

Finally, my comments on Sensitivity settings. Just like all of us having our preferences as to the grips and grip angle, the rod design or rod length, and the size and design of an arm cup and whether or not to use an arm strap, we also have different preferences for various control settings. My original FORS CoRe sports the 'OOR' DD coil, which gets the most use, and it is saved to start-up in Di3. My Sensitivity level is saved at '99'. My other CoRe has the standard 7X11 DD mounted, and it starts up in Di2 with a Sensitivity level save at '95.' All my other modes are saved with a Sensitivity level of '90' or '95' and, if I find it necessary due to EMI or other reasons, I can simply reduce the Sensitivity level.

My three FORS Relic devices have the 5½" DD to start up in Di3 at '99' Sensitivity, another with the 5½X10 Concentric to start up in Di2 at '95' Sensitivity, and the last one has the 7X11 DD mounted and it fires up in 'DEEP' mode with a Sensitivity of '95.' If needs be or desired, I can adjust the Sensitivity level up or down, but I've found that maybe only two or three times every month or two do I find myself changing the Sensitivity setting from what I saved as my start-up setting.

Yes, it is an interesting outdoor sport and we are all biased in how we like to handle it. :detecting:

Monte



"Your EYES ... the only 100% accurate form of Discrimination!"

Stinkwater Wells
Trading Post

Metal Detector Evaluations and Product Reviews
'How-To' help for Coin & Jewelry Hunting, Relic Hunting and Useful Techniques.

My Regular-Use Detectors:
Nokta: Impact, FORS Relic and FORS CoRe
Tesoro: Vaquero, Silver Sabre µMAX and Mojave
White's: MX-7
Note: Detectors are listed alphabetically by Brand, and chosen as desired based on search site conditions.
Additional search coils. mounted on spare lower-rods, are on-hand in my accessory coil tote.
Pinpointers: Using Nokta and Makro Pointers.
Headphones: Using White's Pro Star w/'tank style' ear cups.
Recovery Tools: Using White's Ground Hawg Shovel and DigMaster digging tools.

*** All working well today to make memories for tomorrow. ***

monte@stinkwaterwells.com .. or .. monte@ahrps.org
(503) 481-8147


Re: Finished Core project and an observation.
Posted by: dbado1
Date: May 01, 2017 09:19PM
Nice mod! I believe that you will like the CoRe as you become more familiar with it. We have three CoRe a Relic And an Impact in our little group.
Good work! HH.

Dean

The FORS CoRe is missing ....
Posted by: Monte
Date: May 02, 2017 07:40AM
.... from the Nokta Forum banner. They show the FORS Relic and Impact, which is great, and a 'sub-banner' for the FORS Gold + which also deserves attention from those who primary Nugget Hunt. But missing is the FORS CoRe. These are all in my arsenal and I personally rely on the FORS CoRe as my Target ID/Tone ID model by which I compare all others. My three Relic's work great and do what they are capable of doing for their specific needs. My 'Test' Impact is also a Regular-Use detector, and left me so impressed that I will get a 2nd Impact for my detector battery to use a different search coil.

But my two CoRe's easily hold their own and definitely have their own strengths among the three models. The Relic and Impact do not out-perform the CoRe, they all just complement each other and a move up the line might offer a few more features and design that gives them their own 'edge' overall, but I still put in as much hunt-time with my CoRe. Matter of fact, I think that by the end of April, the CoRe, Relic and Impact have all seen just about equal time afield this year. Some for evaluation comparisons, and some just because they work so well and provide me the performance I want and need for the different site challenges I hunt.

In my opinion, Nokta Detectors ought to proudly show the FORS CoRe at the top along with the Relic and Impact. Three of the best detectors available today. You said you have a CoRe and Relic and an Impact in your 'group,' and that makes a great group where all members are using top-performing devices. In my case I guess I am a 'group-of-one' having all three models and multiples of two of them and a plan to double-up with the Impact as well.

:detecting: Nokta! :detecting: Nokta! :detecting:

A bit biased I guess, :wiggle:

Monte



"Your EYES ... the only 100% accurate form of Discrimination!"

Stinkwater Wells
Trading Post

Metal Detector Evaluations and Product Reviews
'How-To' help for Coin & Jewelry Hunting, Relic Hunting and Useful Techniques.

My Regular-Use Detectors:
Nokta: Impact, FORS Relic and FORS CoRe
Tesoro: Vaquero, Silver Sabre µMAX and Mojave
White's: MX-7
Note: Detectors are listed alphabetically by Brand, and chosen as desired based on search site conditions.
Additional search coils. mounted on spare lower-rods, are on-hand in my accessory coil tote.
Pinpointers: Using Nokta and Makro Pointers.
Headphones: Using White's Pro Star w/'tank style' ear cups.
Recovery Tools: Using White's Ground Hawg Shovel and DigMaster digging tools.

*** All working well today to make memories for tomorrow. ***

monte@stinkwaterwells.com .. or .. monte@ahrps.org
(503) 481-8147


Re: Finished Core project and an observation.
Posted by: KurtB
Date: May 02, 2017 06:47PM
Thanks. It's nice to have a machine that has fast recovery and isn't to chattery.

Re: An interesting observation and read.
Posted by: KurtB
Date: May 02, 2017 06:58PM
I didn't mind the stock rod at all but over tome it just wore on my back. I have had a couple back surgeries and I have to do anything I can to keep in the hobby. There are many lighter machines but I really like the way the Core operates. All the bench test were done with sensitivity at 50. Only adjustments were to id mask (disc.). In the field I was hunting with the sensitivity at 90 and when I adjusted the id mask from 49 to 50 it got a little sparkier.

Just one of the reasons I really enjoy my FORS CoRe ...
Posted by: Monte
Date: May 02, 2017 08:55PM
Quote
KurtB
It's nice to have a machine that has fast recovery and isn't to chattery.
I really enjoy every model in my Regular-Use Detector Battery, to include the Nokta Impact, which is why I will get a 2nd to keep a different coil mounted for ready-to-grab use. And my FORS Relic devices, all thee of which sport a different search coil as well. But my interest in these newer and more featured models wouldn't have happened if I would not have owned the FORS CoRe.

The CoRe took me by surprise for it's excellent fit, feel and balance, impressive in-the-field performance, and working so well with quick-response and fast-recovery that really improved my success afield, even over other proven detectors. The CoRe wasn't just 'better', but it was also 'smoother' and 'quieter' while displaying impressive gain, recovery speed and depth of detection.

Monte



"Your EYES ... the only 100% accurate form of Discrimination!"

Stinkwater Wells
Trading Post

Metal Detector Evaluations and Product Reviews
'How-To' help for Coin & Jewelry Hunting, Relic Hunting and Useful Techniques.

My Regular-Use Detectors:
Nokta: Impact, FORS Relic and FORS CoRe
Tesoro: Vaquero, Silver Sabre µMAX and Mojave
White's: MX-7
Note: Detectors are listed alphabetically by Brand, and chosen as desired based on search site conditions.
Additional search coils. mounted on spare lower-rods, are on-hand in my accessory coil tote.
Pinpointers: Using Nokta and Makro Pointers.
Headphones: Using White's Pro Star w/'tank style' ear cups.
Recovery Tools: Using White's Ground Hawg Shovel and DigMaster digging tools.

*** All working well today to make memories for tomorrow. ***

monte@stinkwaterwells.com .. or .. monte@ahrps.org
(503) 481-8147


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