The more I learn about regulator rebuilding, the more stuff goes into mine, but now I'm faced with the task of winnowing it down for my upcoming trip out of the country! All those tools get heavy! The reason I'm carrying so much stuff around for local diving is that I want to be able to help my divers solve problems so that THEIR dive is saved, so I've decided that my objective in my choices of what to carry on a plane are going to be only what I need to save MY OWN dive. I'll ask my buddy to carry the stuff he needs for HIS OWN dive, and if he doesn't want to do that, he can either carry my expanded S-a-D kit in his luggage or miss a dive.