New here, and need iron help bad please!

I think I never really understood until now what the whisper signals are. I just went out and got a few old coins - esp. the silver dime and quarter - so i could do the depth test in the air. I guess I didn't realize how the signal would really drop off like that - the tone diminish etc - at 6-8 inches. I was always looking for the low volume, but solid tone - esp high tone - not realizing that the small blips that I was dismissing as errors or ambient noise could be what I am really looking for! I am going to continue to run Zero - Pro. Any thoughts as to how high a sensitivity to run? Also...where I am sometimes the grass is a little long and as long as I stay above it I may be losing 3 inches, which is a lot of course - so I find myself getting down into the grass a bit - the coil touching the grass - sometimes mashed into the grass as i'm searching for a signal. Is that a bad practice? How reliable is a signal that I get when I'm all up in the grass like that? Thanks!
 
I think I never really understood until now what the whisper signals are.

Whisper signals are basically signals that register on the machine but are weak enough that your discrimination circuitry cannot identify. Basically, you will head a signal, but won't get a vdi. The volume of the signal shouldn't be weaker than any other signal, unless your machine employs tone modulations to make deeper targets have lower volume. If your machine employes this modulation, I would turn it off (if it is an option) because it might modulate out some of those really weak signals and you may not hear them over the threshold.
 
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