RE: canting
I'm sure this will get an uproar. But, there is nothing wrong with shooting with a cant as long as you are consistant. You may have to mount a level at the angle of your cant. If you use a sight, you will need to use one that you can adjust each pin individually right and left (not just the housing) as well as up and down.
FWIW, I also shoot with a slight cant with my compound (of course I use a cant with the longbow). I use a Loesch grip with the compound.