Originally I agreed with this, but due to the nature of YS engines and the pressurized tank system, it was suggested to me by many pattern pilots to get a familiar 2 stroke and just get some good stick time. Being my first plane, my attention needs to be devoted to flying, not tweaking a new style of engine. This also is partly due to NO YS engines at my field, so a sure lack of assistance for this newcomer. I'll definitely have a YS on my next plane