I've got this and I can't tell if it got faster or not.
"Control Speed", value = "jet 8.85 8.85 8.00"
"JetJump", value = "5.0"
"JetPush", value = "200.0"
"JetAcceleration", value = "5.0"
"JetEffect", value = ""
"JetType", value = "hover"
"JetFuelRechangeRate", value = "1"
"JetFuelCost", value = "0.0"
"JetFuelInitialCost", value = "0.0"
"JetFuelMinBorder", value = "0.0"
If you want to checkout waht it feels like. Join my server. Its going up and down while I test these and other changes.
err, maybe I need to take that space out of "Control Speed"...
Edit:
Nope. I can spin around really fast, but the units don't fly foward any faster

.