I just want to add this thread is very old and after my last post in the past I used synthelator more. The highest dose I went up to was about 6ml and that was crazy. Major bad side effects for the first 5 mins post dosing... never felt anything like it. I feel I have to post that incase anyone respond sthe same as me and I don't want you freaking out as it's really bad. But soon after they go and the pumps, hardness and vascularity is on another level. Everyone has a different response and you guys will find that out when you experiment with different doses.