i been on here a few years watching and trying to learn more info on pi machines i need a deep seeking machine to find medium size objects on a field i found lots of coin possibly a hoard need to punch deeper i have done it with explorer 2 and bought a ctx last year and only 2 more coins i have been doing a lot of research and think a 40 x 40 or 50 x 50 coil on vandal pulse , xr71 or crazy star 2 hybrid questions i have is the pulse timing different on these which works better with large mono coil if needed and what would be recommended i have no problem making coils or building kit as my neighbour is an engineer and has an oscilloscope and can help me along the way any help would be appriecated regards damien
