Footbrake to transbrake comparison

A bunch of the Super Stock guys I race with say there cars are faster off the foot brake than the transbrake, and will qualify like that. One guy could not get is car to hook on the transbrake, so he always foot brakes. The AMX I drive, has to run a Carter 525 CFM AFB, and doesn't have nearly enough pump shot to get the car to launch. So I have to use a transbrake