More testing on 9" deep dime. Ground balance set dead on too.
Deep mode,,,I'm hearing something,,,ground noise or something,,not a pure signal.
Gary's hot program,,same dime,,,cleaner signal.
May be my minerals coming into play using deep.
Don't know tx power setting in deep,,,if 3 might be washing out signal.
Also checked disc setting on a nail,,,seems upper end of disc function unchanged from versions 3.2 version.
Disc 6 sounded the same comparing version 3.2.
This lower disc allowed in version 4.0,,need more time to assess to see what it gives me.