Bill,
Sounds like you are persistant. There was a system that instaed of keeping the engines synced it would monitor engine rpm and when it sensed a big RPM diferential it would cut the power on the good engine and throw a preset amount of rudder in to off set the yaw that might have developed from the engine failure.

Once you have heard a sync system that keeps the engines in harmony you won't make such statements. It isn't very complex and well worth the money and complexity which isn't much to install.
Sparky