Hi Roadking, I think the best advice I can give you is to get used to running the M6 in 0 disc or as low a disc setting as possible , and use the tones on. I think this is where the M6 shines.Soon you will be able to run it in all metal (0) disc and get the maximum this detector has to offer, which is impressive to say the least.If hunting a spot where the targets are far apart and the tone id is not as important , run in single tone for a little more punch on the deep targets, Its a great machine and you don't see many bad comments on them, You got a winner there buddy, Stay with the whites eclipse model of coils as they are a different freq. than whites other coils., the DFX ,MXT, and M6 use the same coils , ...HH...Rich