Funny you should ask. I flew a buddy's KeeCat today. It has a ST 75 for power. Nice roll rate and plenty of power for vertical manuveurs. It is not nearly as fast as my Bobcat, but is a much more relaxing plane to fly. I guess the speed was in the 60-70mph vs BobCat's 90-100 (keeps getting faster as the 55ax breaks in . I think part of it is the wing loading and the other is the tail moment being a little longer. My BobCat weighs in at 6lb 14oz. His KeeCat was 2lb heavier. The prop he is using is a zinger 11x8. He could probably get more speed with a higher prop pitch. He had a little trouble with the nose gear retract not locking down after one of his landings, but otherwise the gear held up well.

Oh ya for what it's worth - I managed accidently to gently touch my BobCat's main gear on the ground during a full speed low (!) pass. The mod's I did to the gear mounting appear to work pretty well.