Thanks for the info.... The Magnum .61fs is not a powerhouse by any stretch, but it doesn't miss a beat.... I'll try it and it it's lacking at all I'll put on a 50 2 stroke. I'm planning on a all up weight of under 4 lbs if I can. I'm glad everyone likes the foam core, that's one less thing to worry about. Oh, by the way, the edge will be here tomorrow How long of a build time am I looking at?