Which brings to mind another issue: Several of you have decried the dangers of having one company with a supposed monopoly over the production of unleaded avgas. In reality, we already have that problem with the sole-source supplier of the TEL for 100LL. Besides, Braley has published a specification that outlined the components for G100UL. There are no unnamed “magic” ingredients that only he controls. Anyone can produce a fuel that meets GAMI’s specification. The bigger challenge is developing a distribution network for the fuel they manufacture. The beauty of G100UL is that refiners can use the same tanks and transports they now use for 100LL, since both fuels are totally mixible and any lead contamination will be minuscule and fade over time. Local FBOs can use their current storage tanks to hold the new fuel, thus negating the need for new equipment.