We went to the gym a few days this week, and I've begun trying some of the simpler routes on the taller walls. I've largely been working on 5.7s on the 25ft wall, but I moved over and tried a 5.6 on a 45ft wall. I'm actually terribly afraid of heights and have to work really hard to control my nerves when climbing, so 45ft walls are... intimidating. But I nearly made it! I figure that will be my stamina building project, and "control the panic" project, for the time being.