i would leave it in large chunks....depending what type of pipe you are using the powder will melt so quicky before it vaporizes and youll just waster it and suck it into the pipe your your mouth without fully vaporizing it
dude you're smoking crack.... if its any good you're not gonna care about proper dosing after a few hits... you're gonna smoke it all. sounds good tho, have fun.
Ya know I disagree. Maybe I never got the "blast off/bellringer" but 3 or 4 times I have tried rock and found it utterly unimpressive. I realize this is the exception not the rule