Mike, I just received my RY today and compared to my other profile (katana) The surfaces are huge from what I saw. This ones going to be a MONSTER!! Do you know what 4 stroke was used on the RY in the video from your site by chance? I've been using 2 strokes on my profiles for a while now but I'd like to go back to the Saito 100 on this one I think. Weighs less than my OS .91 2 stroke.