DD Stock coil vs. Concentric

[cherringtonsm]

For those of you who have both the 8 1/2 x 11 double D stock coil and the concentric coil which do you prefer and why? I don't recall the size of the concentric coil off the top of my head but the larger one.
Thanks
Sam

 

[John-Edmonton]

In low, mineralized soil, the concentric coil wins hands down. It gets great depth, greater ID capability capability, audio to help judge a targets depth and easier pin-pointing a target when using the inner coil. DD coils punch deeper in mineralized soils, but read bottle caps as coins. I much prefer using a concentric coil, especially when hunting for coins and jewelry.

http://www.garrett.com/hobbysite/hbby_searchcoil_tech_sheet_en.aspx

 

[cherringtonsm]

Thanks John. I live in Midwest Illinois and I've been told that the mineralization around here is not bad. I may have to purchase one of the concentric coils.