Once cooled in place, you're fine. Any trapped air that was still under pressure after cooling has long since found a way out or is such little volume/pressure that it doesn't matter--just giving you tips for easier installation next time. Also don't want to leave you with the impression that you can't use epoxy with bamboo--it just requires a lot more care when removing and very slow heating--helps to use weaker epoxy, like the new one minute or three minute types. I'm pretty happy with the stuff archers use on arrows, though, so will stick to that for now. One advantage with the melt-type adhesive is that you can reheat and adjust it if you get it a little off center. Epoxy has to be cleaned out and re-done completely after applying heat. On heavy duty rods, like saltwater stuff, I would use higher strength epoxy, though, for the little bit of added security it gives.
-CC