I watched the AOPA interview. They have done some great work but I think the rollout plan needs review. Their plan is to get STCs for almost everything in the fleet. So far so good, I guess. But then each owner will have to buy the STC, stick a new placard to their engine, and insert a POH addendum. I’m thinking that unless the STC is automatically delivered when you buy a gallon, this is going to face huge resistance.
Maybe the long-term plan is to have the FAA accept G100UL as a full 100LL equivalent.