Air test, and messing around with targets in the yard helped me a bunch getting used to VDI and target representation. Not being familiar with the AT Pro, I suggest running in standard mode for a few trips out to get used to the tones the AT has. It took me a while to get used to the pinpointing of the DD coil, also accurately sizing targets (Garrett has some great AT Video's on their website for this) Besides that, it's a great grab and go machine that can easily be adapted to because of it's ease of use, a less is more sorta thing. Happy Hunting, I don't think you will regret your choice...