I would get the old girl airborne let her accelerate to about Blue line +20 before putting the gear up and climbing away. I would be through 1000' AGL in no time. That way, if one quit prior to blueline +20
That certainly is a novel precaution not mentioned in the manufacturer's POH or FM. Pity about all that extra landing gear drag wheels down while attempting to accelerate promptly to a safe singe engine speed. All you have proved with your "technique" is to place the aircraft further along the runway when you decide to cut both throttles and land straight ahead on the remaining length.
Do you factor in a flapless single engine landing after bunting over to force land straight ahead? Try touching down at Blue Line plus 15-20 knots and wheel barrow down the runway while trying to apply brakes with no anti-skid capability and that's ona dry hard surface let alone a wet runway. Try judging all this with a night forced landing on the remaining length of runway. This is just one of many examples of home-grown gimmicky "techniques" that plague the general aviation pilot population.