This was the first spin session in a long time that was actually fun. I felt solid on the bike, my arm can take half the weight now, my butt is feeling better, and my legs are remembering how to go round and round. Up till now I've mainly been scraping through, nursing the arm. However, I have to admit, my fat jiggled. I thought my calves were pretty toned, but they jiggled. As did lots of other stuff. Personally I think it's all resonance, and sympathetic vibrations.
We did lots of stuff, some one leg, accelerations (got *that* close to 200 rpm) then aerobic sets with short time trials, hill climbs, 15/15's and other stuff. I had happy feet. Was on the bike for 1.75 hours. Hoping to try a swim tomorrow, and see how that feels.