:confused:Which coil for my F70.

[draaiorgel]

I'm torn between the 10 x12 sef (butterfly coil) and the Fisher 11 inch bi axial DD coil.
Which one would you recomend and why?
Weight is a consideration too.
I do realise that either one would give a steadier and more accurate vid, I go by the sound followed up with vid to decide whether to dig or not.

For beach use wet and dry, no wading.

 

[mudpuppy]

Hey Ian, Eileen...
I have the 11"DD have not tried a larger coil, or any other for that matter. But I cover a lot of sand up here in Mich, I think the 11DD is so light and fast, that I am able to quickly cover some real estate.
I extend my F70 shaft as far as it will go, crouch down sort of, and swing a 8' swath...I run in AT on the beach and dont mind hearing bobby pins, sparker wires or anything else...it tells me a lot of what was going on here. I carry a light 5" long handle scoop, and dig everything..."dig" is not the right word, more like swinging the scoop like an axe, or weed cutter...If I have a deep target, I chop out a four scoop area and get the coil down in there for the final retrieval...I know a lot of this depends on the beach, but the F70 with the 11"dd will get deep rings and coins in the wet sand, this summer I will probably set discrim at 5 just to be able to run in DP tone...that really tells you a lot!
Good Luck, and HH and stay in touch if you come across any great finds or tips for this machine!
Mud

 

[draaiorgel]

Thanks for that mudpuppy,
You said what I really wanted to hear.
You've been a great help. Cheers M8.
I hunt in AT mode all the time, and if I want to check a target, just notch back to program 1 which is set on Disc mode.
Disc set at 4 usin' 2 tones, thresh I vary from -3 to +3, sens I vary from 40 ish right up to 90 ish I think it gives a lot of info.

I can get about 11 inches in the dry, only about 4-5 inches in the wet usin' the stock 10 inch coil.
Will be orderin' my new coil tomorrow sometime.

 

[Bill Ladd]

I think that the stock DD coils on the F75/ T2 (that also work on the F70) is hands down the best coil I have ever used. Surprisingly great in trash for it's size, & that size makes for great ground coverage as well. HH,
Bill

 

[mudpuppy]

I mentioned it before on another post, I have suffered no shoulder or elbow problems from swinging this rig practically every day for over a year...I do get "hammer hand" from time to time though. You know when you swing a hammer all day working construction? You cannot open your fingers to let go of it at the end of the day, thats Hammerhand!...

 

[draaiorgel]

I think that the stock DD coils on the F75/ T2 (that also work on the F70) is hands down the best coil I have ever used. Surprisingly great in trash for it's size, & that size makes for great ground coverage as well. HH,
Bill

Thanks for your input Bill, l much appreciate your valuable opinion.
It's good to know I'm doin' the right thing.
We only got the F70s in October 2010 and at that time we weren't offered a choice of coil,
they only came with the stock coil.
Of course this is over here in the UK and only one dealer/distributor to buy from.
But we both love our F70s dearly. (brilliant coin and jewelry hunters.)