Completed the first two disks of Spinervals Hardcore 100. Total time--3 hours and about 35 minutes. I hadn't planned on doing the entire 5.5 hours, so I didn't eat anything before getting on the trainer. If I had planned properly in terms of nutrition, I think I could have made it through the entire thing.

This is a great Spinerval. Very do-able if you have a good base. I like all the sets. The third disk, which I've done two or three times, is the most difficult (2 hours, a lot of big, tough gear work). Playing my own tunes helps a lot, too.

I'm going to try to do the workout in its entirety some bad-weather Saturday or Sunday. But hopefully, we have had our final "no riding outside" weekend until next winter.

With some luck, tomorrow's rain and the rest of this week's warm temps will melt the ice pack so those of us here in the DC area can ride outdoors again in a couple of days.