I want to do it IM since that is what I'm used to. Am I just suppose to use a slin pin? The slin pins that I have don't have a removable needle...is it ok to draw and shoot with the same needle? How much BW should I mix with each shot? How long should the needle be?
Thanks!
P.S. My IGF-1 LR3 was sitting in my mailbox unrefrigerated for 3 days, is it still good?