I actually forked over the cash for the recommended "skinny calf" protocol, which got me 400 mL of Syntherol. From my research, this amount has increased calf size by .75-1". The only thing holding me back is the commitment. 12 pokes a day! Yeah, 6 in each calf for a full month... and apparently can be pretty painful. Once I begin I plan to post my results and experience, but that won't be until mid May when I return from vacation.