i use the performance file for both, because supposidly "more power less fuel" I have to go up there and have them set my shift points because it was towards the end of the day on a friday.
I gate shift all the time, and i just have to start paying attention where I like it to shift at because the computer will keep it in 4th and the car feels like a turd.
Mods: cone filter no heatshield, 2.5 dual exhaust, third cat delete, magnaflow internal xpipe dual chambered muffler, autolite 764 gapped at stock, quick capped on one of the resonators, walboro 255 high out put high flow,SCT custom wideband dynotune, 02 mustang gt 4r70w, 4.10's traclok, 160 degree T stat, cobra waterpump(updated), can't think of anything else right now, its a stock longblock though 95. Nitrous wet kit i 150whp shot.