Well YS engines are not for everybody and I've seen folks at our club buy 'em after they saw mine perform despite my warnings that these engines are not for the faint of heart, only to get rid of 'em when they either refused to follow the tuning tips or just figured they knew better.

While you may be happy with your decision, there's a Funtana 90 at our club with that exact engine on it and my Funtana 90 has the YS-110. The OS powered one won't do what mine will....