Don't forget that what goes up must come down. One of the best ways to go down the handrail sections is backward. You still have your handhold, don't get vertigo from having to look downward, and if you slip, you won't go headfirst. I realize that a lot of this sounds perhaps overwhelming or intense, and admittedly, at least for me, someone who is in average to good shape but also has the occasional and random anxiety attack, knowing to turn around to head down was helpful, and I'd highly recommend it. There's also no shame in what I call the "boot-scoot" — just sitting down on your booty and lowering yourself down the boulders.