Awesome. That'll be great that you guys can work together and help each other out. That Edge Performance engine really will want a constant speed prop. Paul Leadebrand told me that if he could choose either the turbo or the CS prop on a 912iS, that the prop wins hands down. He felt he couldn't take full advantage of the turbo 914 with a fixed pitch prop. He and John both rave about what an amazing combo the 914 and airmaster make. I'm sure the same will be true for your EP engine. IIRC, it'll cost you like 12 lbs. Not insignificant, but also not the thing that will keep you from clearing the trees on takeoff.