I paid $110-ish for Sugoi RS bibs on Ebay a few months ago. They are size L and they fit smaller and tighter everywhere than my Castelli duran bibs. I don't have Voler or PI bibs to compare. The shoulder straps are marginal, and if were any taller I would need XL. (I'm 6'0")

The Sugoi chamois is the most comfortable thicker chamois I've used; not sure if your Evolution model has the same chamois as the RS. Castelli's KISS chamois is much thinner and more comfortable to walk in, but not more comfortable after an hour or two on the bike.

The material is thicker than Castelli everywhere too, which makes me sweat more in the summer.