I had a scratch built twin called a ".50 Caliber" from MAN plans. Basically, it was a twin .25 powered smaller Duellist. This was a very, very nice flying twin. I didn't loose an engine often. In cruise flight, the only way I knew that an engine was gone was from the sound. The aircraft continued to track straight and true. At slower speeds, there was a definite yaw, but easily corrected with just a smidge of rudder and a bit of aileron to pick up the low wing. Easily manageable. The airplane eventually died of "Dumb Thumbs" with both engines running sweetly. I'll have to build another some day. I really liked that airplane.