First off, I'm very greatful for coming across this board; it has help me tremendously.
My friend who supplied me my gear gave me 1 18g tip to use for withdrawing. He said to reuse this tip every time because it would take way too long to use the 25g, and I could just clean it with alcohol before insert it. I'm very anal when it comes hygene, especially when injecting something foreign into my body, so to be clean as possible, I think Ill stick to fresh 25g tips. The 18g would just be sitting in a ziploc bag in my safe so am I not contaminating the entire vial everytime I plan to shoot? Does anyone else practice this?