That article on the octane boosters is fascinating. I wonder if the NOS brand booster would be worth using when I do track events with my turbo. It's tuned for 93 but I use 100 (friggin EXPENSIVE!) at the track not for more power, but to protect my engine in case it goes lean for some reason. Last event I ran a 2:1 mix of E85 and 93 at the recommendation of my mechanic, but it's a pain in the *** to deal with getting E85 before an event.