Originally Posted by 68pontiac

To expand on why it's not correct for those that are still confused:

Turning the EPA down basically just changes at what percentage of full throttle gets delivered to the ESC at literal full throttle. If your EPA is set to 90% and you pull the trigger all the way the transmitter registers the full trigger pull but only delivers a signal to the ESC to pull 90%. That last 10% is not wasted, it is just "hidden" and the remaining 90% is rolled into the rest of the trigger pull. Dual rate will do the same function but will function in BOTH directions, meaning your brake pull will be affected the same way, hence the dual rate..

This is exactly what's done on nitro cars when adjusting throttle linkage. EPA often has to be turned down so as not to over-pull the carburetor. You still get all the throttle pull you need and the "extra" is not dead in the trigger.