I just purchased a Stinger from our LHS and it really looks like well built model, the covering is perfect and a lot of attention has been paid to building a lite model. I have two engines to choose from a new 72 Saito 4 stroke and a 91 Magnum 4 stroke. Would appreciate any input from those who have this engine combo.Thanks, Flybye Fresno Radio Modelers Fresno,Ca.