I tow a 2013 Ford Explorer behind my 34' Class A and use a Brake Buddy Classic supplemental braking system. When the system activates, the piston pushes the brake pedal all the way to the floor resulting in the brakes locking the wheels for a few seconds until the air pressure releases and the piston retracts. I tried reducing the air pressure and the sensitivity in the Brake Buddy with no change. Has anyone else had this problem? While the system doesn't activate often, when I does I don'gt what to lock the toad brakes and drag the car for a few seconds. I've discussed this with Brake Buddy tech support and they only suggested lowering the sensitivity further. I don't want the system so "loose" it won't stop a 4,500+ pound vehicle, but I don't like locking the wheels. Any suggestions or thoughts? Thanks.