The tire thing has been interesting.
There is a factory somewhere that makes something like 80% of all the tire brands for the GA market that had a fire and production stopped and it has caused massive issues with getting tires. We're a busy flight school and, well, students are hard on tires...we've decided to stockpile as well, and for the same reasons.
@Richman - I've wondered about those ruddervator skins. Is there an STC or something for a non-magnesium replacement? It would be a shame to bin an entire 'Bo just for corrosion on those skins.