The Saito 72 will be lighter than the 60 2 Stroke. It turns bigger props because of the higher torque it puts out at lower rpms...horsepower means absolutly nothing on a model engine. The Saito won't ring your ears, it will start easier. It will save you money in fuel. It will also have better throttle response, and more grunt. I have a Saito 72 and it is a jewel of an engine...it really is.