Has anyone had a chair kit damage their inflatable pad? I don't mean damage from stuff on the ground puncturing it, but from the folding and sitting.

I know that you're supposed to inflate to less than full to allow the pad to fold, but I worry that the folding might increase wear on the fabric. I also worry that sitting on the pad might concentrate wear under my pointy butt-bones --even though I'm slowly adding more 'padding' to them. Has anyone noticed extra wear, or had catastrophic failure of the pad due to using a chair kit?

Corollary question; I found out that my current pad's R-value is less than half of advertised, so I'm on the lookout for a new, warmer pad. Do you all think vertical or horizontal baffles might make any difference when folding into a chair?