Eden, thanks for the warning. That's exactly what my hesitation was when I saw the chamois.

I had a pair of Adidas Response Race shorts and the leg grippers didn't really grip so the shorts would ride up and there was a killer seam that would eat into my rear. I know all about the little shark bites you described!

Sounds like either the Shebeest Ultra Ds or SSS would be a better choice for me.