When I rode that PR breaking 30 on Sunday there was an energy (no stimulants) packet my son gave me. It was a good dose of BCAA's. I poured it into my 24oz water bottle and drank it all over the course. My legs have never been that strong. Maybe it's coincidental to the season's level of conditioning. I have never avg'd 15.5mph with the last 3 miles cranking 21-22mph. This is a fairly hilly course, out and back. Typically on that homestretch I'm beat up and glad to finish in the small ring. I'm off the creatine but still taking the supplemental 40gr of whey and bcaa's before bed.