I fly models for fun,, of course.. I have learned there is no right one answer. If you like ys,, so be it,,, I prefer Saito,, doesn't mean I would not fly YS.. I do believe we should respect the opinion of others,, I would have a fly off for any who would like to visit.. Just as an amature of course,, the laugh it off. I didn't say I was an engineer,, but didn't say I wasn't either. The engineers I went to school with in the same classes graduate 20 semester hrs earlier... then of course grad school for Statistics.. and Pulp and Paper technology,, and finally Quality and Productivity by Dr. Demming as the professor,, I did learn Quality and acceptance is up to the customer to determine, and we are all customers in this hobby. I hope we all enjoy the debate on the Best Engine.. but I still buy saito.. Jim