i am 2 time cycle user first cycle was omn.. didn't do nutin but give me a sore ass i used 20gauge needle one inch long? should have used a inch and a half i guess?. but thats the past. i am about to go on sust 150 and dbol any advice on amounts.. injection spots needles gauges any advice would be apprectiated.. and i have read in other posts that sust hurts like mutha *&^% WHY would it hurt more than other?? thank u to all that respond