yeah, you don't need to reapply. I think if you check in with Aire they feel there is a limit to how much you should use 303. I know other manufacturers have opinions about too much 303. At any rate, you don't need to do anything regarding protection prior to your trip... as far as standing around contemplate rigging while drinking beer - much more likely, at least if it were me.
"If you dont do it this year, you will be one year older when you do"