Hi iFLY rc-Vic
About 10 years ago I built a SPAD pusher/puller plane. It was a 40 size plane and used two .28 engines. One of the most fun efforts was taking off on only one engine, either the pusher or the puller (I never saw a difference). It took forever to build up enough speed for take off. I learned to give it full elevator, in a jerking motion, early on, to get the wheels to run higher on the grass. At take off it might lift 6 inches and I would be almost out of runway. I had to turn the plane 90 to 180 degrees while only 6 to 12 inches off the ground. It was a fun challenge. Once in the air and at altitude it did OK on one engine.