I wanted to leave the factory switches there, just in case I ever wanted to use them as the factory intended. I am not to concerned about accidental bumping of switches. I have been flying for years and I have a LOT of switches on my transmitters. I have learned to always do a "pre flight" to be sure switched are positioned were they are supposed to be. Flying has also made me adapt at moving switches without having to look at them. Anyway when using this system I only have to move one switch, one position, to make the change from forward to reverse, or vise-verse. I always leave it in the on position. I have found the only time I have to turn it off, is to do any programing or setting changes in the transmitter.
Works for me.
Ron