Thanks

Funny about the chamois/padding thing. I used my commuting saddle, which is fine just with street clothes, but wore some cycling shorts with a rather thick gel chamois in them. My thought was that the slightly wider seat and wide padding pushed out against my quadratus femoris directly or indirectly caused my gluteus medius to overstretch. I felt I got an IT band irritation on the outer edge of the knee from it.

I have a pair of shorts with much better (thinner) padding for the next try and three saddles (including a Brooks) to work with.