Don't forget about the Blue Chip FMS. Although it doesn't give the upper RPM of the fueling, I wouldn't trade mine for any of the options out there. Fuels just as hard as the Edge Comp or TST, but doesn't have the nasty de-fueling shutter that you get with those options.
They are very expensive, but completely worth it in my humble opinion. Stacked with a SMARTY, they offer endless programming options. There are 64 different settings on the FMS, and a few hundred different settings on the SMARTY.. Although, I've never tried any setting but "kill" on either of them for long.. There is no set phasers to stun in my book.