TweetI have read "thebouncers" and "bigjims" thread on slin,ive bought humilin-r in a vial, soulda got the cartrage, and have to buy the needles now, i know i need the U100's, but they come in 1 cc 1/2 cc and 30? I am a rookie and wondering if the needles that are max at 30 is that 30 iu's? Because the 1 cc needles would be harder to messure 5,6,7,8 iu's? is it 100 iu's / cc ........... I know its life or death........thx alot all..........im also taking 250mg/sus and 100 mg tren every 4 days. Im hopeing to gain from this slin as well.