- Joined
- Dec 6, 2002
- Messages
- 272
when you are shooting syntherol does it matter if the muscle you are shooting is in the contracted position ex. bicep in the flexion position or extension position i was shooting it in the extended position with a 1/2 inche pin is this long enough. would there be more benifits with a longer pin, my arms are 20 inches does the size of your arm determine the lenth of your pin. the info was not clear on the position of your arm, and if i can get the same benifits out of a 1/2 inche pin i will be sticking with that. the only reason i am asking is ause i guy at my gym was saying the way i did it was incorrect.