Great advice gang, thank you!
A couple of specific comments--
PaulRivers, thanks for the stretching/strengthening routine. It looks very helpful, I'll check it out.
Mercator--THANK YOU -- that is exactly the kind of feedback I was hoping for when posting the thread, to see if the soreness might go away in the spring. Excited to hear that your Toupe works for 7 hours, even if it makes you sore indoors in less than an hour.
Providencebikes--yep. Definitely on padded cycling shorts.