In reply to BolderLicious:
I'm pretty sure the correlation between what you can do as your most impressive feat on a fingerboard, which is the sort of thing you're talking about, correlates very poorly with the sort of grade you can actually climb. I've long been convinced that I must be just about the weakest climber possible for the grades that I have climbed, although I would love to have evidence to the contrary if someone wants to offer their record!
For example, I've climbed harder than PeterJuggler or Cameron94 (F7c sport and Font 7C/V8-9ish bouldering both in the last few months) but couldn't do what they can do - I'd need a jug to hang one-handed. (That's assuming, of course, they keep their profiles/logbooks up to date, which may not be true at all - they may climb much harder than their profiles say.) Of course, that's almost certainly because the harder routes/problems I've done haven't depended on absolute finger strength/power as much as technique/power endurance/lank.
Anyway, I'd love to hear from people who are "weaker" but have climbed "harder"
Pete.