Rode the same route I rode yesterday at about the same effort level. My legs weren't having any of it, but my back didn't act up too badly.

I got a little discomfort under some pretty hard efforts, but standing up to stretch my back and just standing up to pedal for a few seconds seemed to make it better for the time being.

If this doesn't work out too well, I might have to lower my saddle and push it back a little bit to compensate for it. The drop is pretty reasonable now though.

The thing I noticed most was how hard it seemed to go as fast as I normally do, turned out there was a headwind

It's discomfort instead of pain for now. The runner's world stretches don't really do it for me. There are only two of them that actually feel like I'm working the area. Bleh.