Thanks all. My guess is that the Road Morph would work well enough and is lighter, but the Mountain Morph would work a bit quicker. I like the gauge models too. They claim up to 140psi, but if you need to be Superman to do it, that doesn't help me. For MTB tires I only need up to 80 or so anyway.

Since I doubt I'd carry it with my road bike I think I'll go with the Mountain version. I'll have to try one at the shop.