OK guys, i'll recieve my Futaba 3PM FASST yesterday, and i mix the chanel 2 with chanel 3, set the forward EPA chanel 2 at "100%" and the brake EPA at "0%", and set the forward EPA chanel 3 at "0%" and the brake EPA chanel 3 at "100%" and all is OK.
Don't have any brake on the MGM and full brake on the servo brake.