The 6x10 coil is a great coil. When I bought mine for the M6, I took off the stock and used the 6x10 only, for 2 years. Its found me some cool stuff! Ive never had a problem with it. I like the 10DD now for more depth, this is my 3rd or 4th 10DD. Maybe Im too rough in the woods with it :dontknow: