My comments in another thread got me thinking about hikes that will cross loose, soft sand/gravel, and, at another extreme, solid rock/boulders.
I do most of my hiking and backpacking in the desert. For general purpose backpacking here, which includes a fair amount of not-too-technical boulders, my trail runners are great. I'll happily take the compromised rock performance for all around lightness and excellence.
However, what if say you're doing a ten mile day, with the first five in sand, and the second five on almost nothing but pure, class 3 rock?
As anathema as this may be on BPL, does anyone here ever carry an extra pair of approach or even climbing shoes with them?
I don't generally bring camp shoes, so in a sense, if I go with two pair, I could rationalize climbing shoes as a replacement for camp shoes.
My current base weight is about 8 pounds, and outside of the proposed second pair of shoes, I know I can get this down below 7 without trying too hard. I'm not that worried about the weight.
It's just, if I'm starting to do a lot of desert peak climbing on nearly pure granite (think Joshua Tree), is it worth my while to bring rock shoes?
If so, which ones?
I've seen 510s, La Sportivas, and Montrails that all seem interesting. I'd want ones with outstanding grip obviously, that don't have trail runner style soles whose corners squash way too easily when on edge, but can still handle some walking with comfort, and are of course light.
Expanding the issue even further, what do those of you do who use your trail runners to get to the base of what will be a long, technical winter climb with snow and ice, requiring crampons and axe?

