Thanks for all the feedback and insight. I think I’m going to lower my seat a bit.

I did measure the length of legs, pretty close, essentially identical.

However, I suspect my body is compensating due to broken color bone some 20 years ago (about a half an inch narrower on my left side), sciatica issue also on my left side, tight hamstring and glutes. Doing lots of PT!

Before leaving for today’s ride, did a number of glute stretches and inserted the shoe shim.

Upon return home, The left sit bone area is a bit tender vs the right after a 3.5 hour ride. Thus thinking of dropping the seat post a mm or two.

makes sense?