Thing is is that most guy's who come on GB can't seem to separate wanting to be a BB'er or a Pl'er. Too much attention on how much they lift , rather than how well they lift, in a workout. Have a lot of guy's who handle (not all that well) 400+ in the bench and still have under par chest, etc. And others who, maybe handle 230-250 in the bench, with outstanding chest, delt and triceps development. Not so much a matter of not carrying about the weight used, but how to get the greater benefit from the weight that is used.
As Wild Willie suggest, many, many top level BB'er (including some Pros) do handle moderate or down right light weights, going for that pump. Remember seeing a well known Pro, from the past, doing set after set of front, side and rear lateral raises with a pair of 20lb DB. Looked strange and funny at the same time, those DB's looked like toys and were almost buried in his large hands.. Told he rarely ever did anything else for the shoulders.
With pure BB'ing, there are many options offered in training styles, methods, protocols.....all aimed at working the actual muscle, rather than putting undo stress on the joint, etc. Good Luck.