Can't help you with the weights.....but I'm sure it's on the Bowtech site.
I HOPE the 82nd is a good all around bow. I bought it to shoot 3D/targets AND hunt with it. As far as I know....ONLY difference is the BH (I think they're on the same riser).
Info on the Guardian???? Faster than the General.....longer ATA (compared to the Gen.). Very dead in your hand on the shot. I bought my son one.....but I haven't really shot it much. He loves it.