Robert's a good guy and all but remember he is there to sell products. When I ordered my Knife he talked me into a Rossi 45 which didn't even make it on the Knife. After some testing on another profile I realized it wasn't a good fun fly engine. The throttle transition was poor but it would scream at full throttle. Being a fun fly I wanted a better throttle transition than a top end screamer so I sold the Rossi 45 for $30 less than what I paid. I then bought a Saito 72 which is a PERFECT match for these fun fly planes...

I just ordered the new Sledge on Friday and can you guess what that's getting for power? Yep, a Saito 72.