Only down side for me is coming off of a Mustang seat, little numb butt starting about 90 miles non stop ride, which is still not bad, but other seat I never got sore butt. I still may keep the seat since after 1.5 hrs, I should stop and stretch. Great forum and bike! thanks!
Most, and I say most people, no matter what you ride or sit on, will become uncomfortable after 1 hour of riding. You can change the seat all you want, and you'll get better or worse results (I've always changed to gel and leather, softer and cooler). Compression causes loss of blood flow. It's actually a good thing, it's your body giving you feedback. You should get off a bike periodically to stretch, and give the body a break. It also helps reduce ear problems which can be permanent damage. Very comon to bikers. Additionally discomfort can cause poor riding habits.
Most "Iron Butts" I know are macho guys. You could stick a pin in their ass and they wouldn't feel it, or claim too. I don't know if they have have callouses or nerve damage, but I've always thought of riding with others as a social thing. I'm not in the 1,000 mile a day group, though there are some, I say why push it? Get off, relax, talk about the great stretch you just did and where you want to go. I like to ride for the enjoyment, not pound out miles. Just a personal thing and not saying others are wrong (don't want to get flamed).
Someone in the pack is hurting, period. Whether they admit it or not. Treat it the same as you do gas. Not everyone has great gas mpg or large tanks, and we stop well before they run out. why make them nervous?
Riding this way always makes me want to do more the next day, and gets me plenty of company, when I want it!