Fred
I've mentioned in past replies I have a 100 Saito in my .46 UCD and It works well for me. Agreed it is way to much power and the engine does vibrate more than a 2 cycle but not out of the ordinary for a 4 cycle. I have 2 Saito 100's and both run the same and they run great. I plan purchase larger planes when I get my Van to haul larger planes, and I'll probebly get something in the Saito 150 or 180 size. Cadilacs are not for everyone. Some folks also like Lincolns
K.O.