So, having used Sidis and SPDs for years, then switching to flats for awhile and now back to SPDs, I find the Sidis hurt my feet on extended rides. Funny thing is it didn't hurt before but now it does.
I've always believed and heard from others that stiffer soles distribute the pressure of the small SPD area better and should provide more comfort overall vs a soft soled shoe. A friend of mine swears by his Teva Pivots. I like the Teva Links for using my flats.
That said, what shoes out there are your picks for comfort with regards to preventing/reducing the "foot burn" issues of SPD use? Thanks.