The ability to have 3 different settings is interesting, but won't that mean that if you mod the bike with aftermarket intake and exhaust, you will need to have three custom maps instead of 1, or else not use the lower two?
I kind of did a poor man's detuning in July, when I took my '04 to Mid-Ohio for 2 track days. My prior experience on that track had been disappointing, with that instant throttle response pushing me and that heavy bike through the numerous and often blind turns. So I re-installed my TRE, which slows the bike down a bit, but made it very manageable and enjoyable through the twisties. I had no trouble keeping up with the 600's through the turns.