Thanks RedRock It's rarely cold enough for me to have to worry about "too cold" here. I remember some chilly mornings riding on the UT campus when I was going to school back home in Texas. Never cold enough to really bother me, but I do remember my eyes watering from the cold, which was annoying.

I ordered some new valves online, and I managed to make a valve off of an old crappy generic pack of mine work for him in the meantime (the valve on that one is partially broken from when I accidentally slammed it in a door, but I think I can make it last until the replacement comes, anyway).