I ride both clipless and platforms on my AM rig but I want to stick to platforms however, I have these problems:

On my 5.10's low impact...
-its so bulky that it sometimes rubs on the non-drive chain stay and drive side seat stay when pedalling and I only have 8.5 US size shoes.
-also very hot on the feet. I do xc ride on my bike, 30+ miles and it's very uncomfortable.
-heavy

On my vans like skate shoes...
-sole is too soft/flexy.

What I'm looking for...
-narrow
-lightweight (as long as it's lighter than the low impacts)
-not too hot like impacts
-stiff sole (for climbing)

Has anyone tried the Teva Crank's? What are your thoughts? Or do you know of any biking shoes that's comparable with Crank's?

Thanks!