I have found that distance estimate to be a pretty good marker; I actually use time and go for 10 hours in the saddle. If I can ride a motorcycle for 10 hours and not have any specific area of pain (not talking about any general discomfort), I find I can ride it open- ended at that point. But if some part of me is getting my attention (Easy Boys- not 'those' parts) before that amount of time then I have to find and eliminate the cause of the problem or it will just get worse.
An Airhawk was the final, 'magic' ingredient for long distance riding on the C-14 for me but it did take me two purchases, with one return, to find out how to use one properly, at least properly for me. Just enough air to float me off the saddle but no more- if it feels like a 'bag of air' under me, then it is substantially over- inflated.
Brian
I'm not sure that 15 miles is a proper test, I think 500 would be better. However the differences between the typical male derriere and the typical female derriere have been well documented so that could no doubt be a factor in this case. If someone doesn't snap this up, then please do yourself a favor and give it more testing at different (lower) air amounts before lowering your price.
Oh yeah, I almost forgot...... BUMP!