Jeffry: It’s good news on more than one front. Lead is also even worse for airplane engines than it is for humans. I’ve heard some say the logjam in approving UL products is headbutting between the EPA and the FAA, with the former dragging its feet on approving the anti-knock properties of UL fuel (both Swift’s and GAMI’s) and the latter kicking the can down the road (through several Administration turnovers) with exemptions, thinking no one would pay much attention. Ironically, the recent surge in anti-lead publicity at RHV (which is arguably more “anti-GA”) could be part of what’s pushed the FAA off the dime.