When I'm climbing, I leverage the handlebars, but most of my weight is on the pedals.
Originally Posted by
nymtber
I will stick with aluminum bars because Carbon cost too darn much, and don't allow for cheap bar ends to be used

(flat bars)...
Use whatever you like. But don't stick with aluminum because your Hulk-like strength might snap carbon ones like a twig. You won't. I suspect the same thing goes for frames.