The Rotax 582 in my KF3 is getting close to 300 hours and I'm looking at rebuild options. I definitely want to stay with the mounts and everything I have, but a little more HP would be nice since I'm thinking floats in the near future. Has anyone else made the swap to a "Rotax Rick" 670 who can post some real numbers (climb, cruise, etc) they saw with the swap? Before and after numbers would be nice. Thanks!