Read this while you are waiting.
Google "Digger27's F70 log"...everything I learned for the first 6 months using this thing from day 1.
That was all in great western Kansas and Missouri dirt.
I dug way less during that time since I was experimenting on just about every target with many settings.
After I finally settled down with a few favorite settings and just hunted I more than made up for what I was missing during the initial experimental stage.
Blast-Through all metal settings for extreme iron and heavy trash
http://www.findmall.com/read.php?37,2105767,2105993#msg-2105993
Changing over to 1 tone...still my most favorite hunting in disc
http://www.findmall.com/read.php?37,2125979,2125979#msg-2125979
http://www.findmall.com/read.php?37,2111527,page=1
http://www.findmall.com/read.php?37,2282221,2282323#msg-2282323
http://www.findmall.com/read.php?37,2287414,2287651#msg-2287651
Near end of the 2014 year finds, my first full year swinging the F70
http://www.findmall.com/read.php?37,2120038,2120064#msg-2120064
That elliptical coil...my jewelry killer.
I use all three coils you have plus now a Nel Sharpshooter but the elliptical concentric is still a favorite.
http://www.findmall.com/read.php?37,2144440,2144440#msg-2144440
http://www.findmall.com/read.php?37,2296414,2299709#msg-2299709
Moved back to Bama halfway through 2015, after an accident while packing the moving truck I was in a wheelchair for weeks but eventually and still ended up with a great year...finds from both out west and back here.
http://www.findmall.com/read.php?91,2259963,2260424#msg-2260424
After I moved back to the difficult SE. I continued to experiment in order to try to find targets around here which more often than not are extremely masked at all depth levels....also worked on getting past 5" in depth.
http://www.findmall.com/read.php?37,2229950,2229950#msg-2229950
http://www.findmall.com/read.php?37,2232767,page=1
Finding gold...coins act strange in my rough soil but thankfully gold seems way better behaved
http://www.findmall.com/read.php?91,2249641,page=1
Miscellaneous finds and settings
Hunting in an alien landscape...why I experiment so much
http://www.findmall.com/read.php?37,2340702,page=1
Why I prefer the 1-15 iron range units.
http://www.findmall.com/read.php?37,2360865,2361277#msg-2361277
A seated dime
http://www.findmall.com/read.php?37,2256975,2257138#msg-2257138
Lessons learned
http://www.findmall.com/read.php?37,2262514,2262767#msg-2262767
All metal hunting...takes time to master but once you do an excellent way to hunt.
http://www.findmall.com/read.php?37,2302275,2302335#msg-2302335
Dealing with pop tops and DD coils...easily.
http://www.findmall.com/read.php?37,2332140,2332177#msg-2332177
0 disc...can be noisy but has some advantages
http://www.findmall.com/read.php?37,2306599,2306730#msg-2306730
http://www.findmall.com/read.php?37,2308540,2308556#msg-2308556
A Factory Reset...get to know it because it can be your best friend
http://www.findmall.com/read.php?37,2320842,2320919#msg-2320919
Up averaging around iron.
It is built into most Fisher unit's programming, it is real and can help you find masked odd numbered great targets others miss if you understand it.
http://www.findmall.com/read.php?37,2322233,page=1
DP...more than just a tone choice.
http://www.findmall.com/read.php?37,2351519,page=1
High thresh...some interesting results.
We can control the thresh completely in disc which even the F75 guys can't do.
Nowadays I use the highest thresh possible in both disc and all metal.
http://www.findmall.com/read.php?37,2346907,2346907#msg-2346907
Thresh can affect depth in many combinations of settings.
High sense, low thresh, low sense, high thresh can both work and can affect noise and chatter.
Some interesting air test results and charts in these two threads.
http://www.findmall.com/read.php?58,2375024,2375051#msg-2375051
http://www.findmall.com/read.php?37,2356914,page=1
Monotone plus high thresh
http://www.findmall.com/read.php?37,2372790,page=1
Some thoughts...
http://www.findmall.com/read.php?37,2369642,page=1
Currently I am using some very strange settings that are producing some surprising results.
I have tried some version if these in the past but the more I experiment the more I realize that these might me the ultimate settings for keeping this non DST unit the quietest.
I set the disc at the highest possible, 65, then notch in several areas back in under that setting.
The more you notch in the noisier it gets but that depends on site conditions.
Usually I can safely notch in iron, which I want to hear, and at least two other sections like nickels and tabs because I am still a good hunter at heart.
Sometimes I can notch in more sections than that.
Lately I am using DP tones doing this because iron sounds good and isn't so annoying and I can hunt without looking at the screen and just listen for good tones.
Quite a backwards way to do it but I can pump up the sense to max and the thresh too in several sites and still keep the thing shockingly quiet.
I can never hunt this quietly using normal low disc settings.
I have no idea why it works this way on this thing but it does and it works well.
All of this is there for you to try...in the future.
At first just use factory settings, tweak them to make them quiet as possible and dig a bunch as you get used to it.
This thing is way overpowered out of the factory and might take a little time to get used to it and take it but not all that long.
Super low sense still gets shockingly deep so keep that in mind...that is one of the hardest things I had to learn to wrap my head around at the beginning.
Factory settings should find you about 95% of what's out there in normal sites, soils and conditions, tweaking them will produce better results in the more challenging sites like mostly where I hunt but you have plenty of time to experiment and find out what you like the best.
We all use these top end Fishers in sometimes some totally different ways and we all are successful so just have patience and you will eventually find yours one day too.
Till then just keep an open mind and have fun.
Ask questions as you learn, we are all happy to help around here.