Been a Tesoro user on & off for over 20 years, just picked up a new Vaquero High Tone. It's the 3rd Vaquero that I've owned in the last few years in my quest for the "Perfect" machine. I still have 3 TID machines, but, sometimes I just miss the simple beep & dig concept that I learned on 40 years ago. I have been working on "Power Balancing" and have found that the Vaquero will hit a .69 cal bullet I have planted with the GB set a little negitive. If I set it with no rise in the threshold, it will not hit it in disc mode. Set the GB negitive and it will get the 10" bullet. Can't wait to get an old friend back out in the field to dig some relics!!!!.........HH, MO