(ignored the commital height 'limitation').
But wasn't that the whole point by the OP? There is no officially published factual data in POH's on so called "committal height". You could come over the fence on one engine 15 knots above the VREF for a flapless and still go around safely. Even with a Seminole a single engine go-around at 200 ft in the normal landing configuration starting with 73 knots, can be done providing the flaps and landing gear are retracted promptly and the nose held down until 88 knots achieved. The problem is here pilots instinctively raise the nose as they apply full throttle on the live engine to the normal two engine climbing attitude like a go-around on two engines.
A single engine go-around commitment height is just fooling yourself. The situation changes second by second depending on airspeed, flap setting. That is why flap selection on one engine on final is best delayed in order to allow more options. But to set in stone (as blindly taught in many flying schools as a matter of policy), a generic committal height on one engine, is not very sensible