I got a new x-terra 705 a week or so ago but the snow and frozen ground have kept me from using it. I laid out some coins and junk on the drive way just to try it out and hear the sounds. That was on factory preset. Not much of a test but when thats all you got, to kill time until the ground conditions improve. Im assuming that on a real hunt I would want to ground balance and turn up the sensitivity for optimum performance. Is that true? With out actually going out and playing with it, about all I can do is think about it. I guess Ill just ask. Hows the best way (what settings) to get started?