Same spin program today, and it felt better. Actually, I noticed after the last one that I did actually feel fresher, livelier - once I'd recovered. Today, I felt it almost as soon as I came off the bike! Quite odd. The session itself felt better, though statistically there wasn't much in it really.
The main difference is that I made it all the way through the 40-sec effort, and felt okay. my max cadence was lower, but at 138 it wasn't too disgraceful. Otherwise all of the RS efforts were a few RPM higher than last time, and more consistent - results of 160/160 rather than 159/154. Not too much more to report otherwise, but subjectively, I was much happier with today's spin.
Brief stats here.