GPS on my phone is slightly off in reporting distance. Reported power usage is way up - 22% for a 70 minute ride. I've uninstalled my not-reliable-enough wireless bike computer (Axiom - ugh).

I'm about to reinstall my Cateye Solar from 1983, I think, and hope the 519 batteries last a year. We'll see. :-)

Thanks, all. for your help.