Chafing thing I learned from running marathons.....
use gel anti-persperant (sp?)
I know you didn't ask about what to do about chafing.....I just thought of it cause I used it yesterday. I've had a problem on longer rides in the hot weather because when my shorts are soaked with sweat the chamois edge rubs my thigh (this is not the seat) yesterday I dressed, was in a hurry and didn't see the body glide on the counter so grabbed the degree deoderant/anti-persperant amd rubbed that on....no problems.
I'm curious why you can't switch the seat?
"Being retired from Biking...isn't that kinda like being retired from recess?" Stephen Colbert asked of Lance Armstrong