I've been busted,only one bar of the dirt meter!!!

I assembled a F 70 detector as my demo detector.I took it out to the "Mother of All Test Gardens".I ground balanced and ran it throught the garden.It had zero to one bar for the dirt reading.I guess I don't have as much mineralization as I thought.No more whiny excuses.

That's good to hear. You'll be able to ID targets to greater depths...... with more accuracy this way.