Just bought the XP Deus and trying to learn the machine. I've watched all the videos I can find about the XP Deus and ground balancing. They are almost all in the UK, and the dirt here in the US is a little different. I've proven to myself in the test garden that the default GB of 90 will not hit my 9"-10" dime. The tracking and pumping method both come in at 78 and the ground reading is 77. At those numbers the Deus will hit my 9"-10" silver dime, but the coil becomes ridiculously sensitive and falses on the slightest bumps. It is impossible to hunt soybean stubble or tall grass. I can manually set it as high as 86-87 and the dime signal almost disappears, but it stops the falsing. Is there something I've missed regarding GB, or is this just a Deus thing? Any suggestions?