You must have been the guy in the camouflage jersey. Did you notice you weren't the only amputee in your race at Vacaville? I raced the Earlybirds with the other guy, and he is fast. Y'all both kick butt. My wife and kids were cheering you both on and ringing cowbells halfway down the front straight while I was warming up a block away. They made sure to tell me about the racer with the cleat on his prosthetic and how intense he was. I would suggest joining a club or team if you aren't already on one. I get lots of help and advice from my team and other racers I have met through racing and through my local cycling club. If you are still receiving PT, ask your physical therapist for suggestions as well.