I'm looking for a little larger coil for my AT Pro. Some I have been looking at are the NEL Thunder, CORS Cannon, Cors Scout, and Magic 9 x 13 DD. Having a hard time deciding, are these all pretty similiar?
I bought the 15" NEL and am extremely disappointed in lack of any additional depth. Matter of fact I doubt I'll ever use it again. I'm thinking the way to get more depth from the AT series is to use a concentric coil and overlap the heck out of your swings in areas that are known to have deep coins.
I have a 12" Garrett concentric on my AT Gold currently.