no..take a .20gram rock or 1/20th of a gram aka 200 mg and break it into 4 pieces,put one piece in your pipe and hit it.hold it in for as long as you can.If you do not get a head ringer off that then smoke two of the pieces in one hit and hold...if 1/2 of a .2g rock hit does not get you high then you have got some shitty crack and thats bad since most crack sucks anyway,if you gotta smoke more than 1/2 a 200 mg rock in one hit just to get high then you got hella bad crack...