When I use HCG I put the how mixure in a 3cc syringe and when I'm ready to do my shot, I take the needle off the 3cc syringe and stick the insulin needle in the hole where you unscrewed the pin on the 3cc syringe. It's alot easier and the insulin pin doesn't have to go through any rubber stoppers. I'm doing the same thing with my IGF I'm taking right now.
Micro