just another thought since I didn't see it mentioned in your recent summary. Have you considered using some chamois butter, smeared liberally on your lady bits, not on the shorts. I seldom ride without it as I find that if I am chaffing, it provides a barrier between the sore spot and the sweat and dampness of exertion. My favorite is Assos although I also carry a small packet of Chamois Butter to apply id ride or if I use the facilities.