I just got the Crystal from Art of Exhale & thought the air hole was a little to tight for my liking. So I drilled it out to 3/32 (I think) & now it's to big.
Todd suggested filling it with a epoxy & redrilling. He couldn't think of the name of what to use.
So..does any one know how & with what I can fill the air hole on a titanium rba? Any tips or trick would be greatly appreciated.

So..does any one know how & with what I can fill the air hole on a titanium rba? Any tips or trick would be greatly appreciated.