after that could water be added to it to make it more pliable? or something else? I know some people keep theirs mushy when they make it so it is easier to get a piece off of it. Is this safe to do? It would still have some ISO in it right? Or would that bit left over be the water that is in with it?

Could I use 91% ISO so that the last bit to evaporate would be water? Or would there be more impurities than just the water left over also?

Also BHO is usually kinda goopie. Should you get that bone dry before smoking also? Seems like everyone tends to keep it soft and sticky.