Added a tek gamma 6000 to my arsenal a couple of weeks ago and really like it..It is the 8" concentric coil and am hunting a real trashy demo'ed school with lots of junk,machine is darn good as is but wondering if the 5" dd or the nel 9.5 x 5.5 Sharpshooter would work better..I know the 5" dd would be best all out trash but i'm looking for the best overall improvement,trash and depth..2 birds with one stone type thing,but i know the 5" has a stellar reputation but what about the NEL coil? Info welcome,