Jen
Yeah, now that I think of it more, looser rear band enables the belt to be looser in other positions too.
Solution:
Make it as tight as possible while having it not too uncomfortable. Having you ass spread all the time can't be too comfortable. π
Thats why my belts are cable style. Yes, the cable is pulled right over the anus, but it is far more comfortable that being spread open all the time. Although, someone might like that too π€£ . It does give butt some added roundness though!