Castelli and Assos seem to be cut for a slightly different shape to me (glad its not just me, tlr), I’m a Giordana man; the FRC range, naturally. Oddly Sportful (same owners as Castelli) bibs fit okay.
I bought some DHB bibs cheap (and even PSA’ed em as they were on offer), probably one of their cheaper range but they are pony; the lycra is baggy and loose with little tension and the pad is too soft and bunches up.
I’ve got a right old mish mash of kit. Some dhb, as I really like the (pre Honda) Wiggle team bib shorts, which they don’t make any more. Also a big Pearl Izumi fan, as the quality and fit are excellent.
No Rapha, it’s a bit hipster / celeb for my tastes.