So I think I've conned, er, convinced a couple friends from the local fire dept to come down to Alabama for the weeklong this year. I'm helping them out with a gear list, and we came to the issue of rappel racks. Their standard department racks are aluminum, which isn't so popular among cavers. I *recommended* they invest in some stainless steel racks, but what is the official stance? Will they be able to use their aluminum racks on NCRC rope?
Thanks!