Originally Posted by Disco_Dante
Don't bring a full can of propane up with you. Leave some room for expansion. These things also usually have emergency release valves so that they don't explode in situations like that.
Where Green Gas doesn't and one guy in Canada had a can blow up in his convertible and pop a nice hole in the roof. Propane and AI adapters FTW!
I wouldn't leave them empty while heading up. Always leave a touch of gas in the mags. It wont be enough to have any worries about the mag blowing gaskets or valves on the way up but it will keep the gaskets pressurized so they don't shrink and/or dry out.