Mudsurfer, There at least 3 of the Evolution motors flying regularly at our club field, two .40s and a .60. The reports are very favorable, easy starting, good reliable power. I just asked our chief instructor about them because I'm thinking of putting the .60 in my new Starduster. Our people are all having good luck with them. Of course they are still too new to have any long-term history.

Regards from old bird.