Wow, thanks a ton, that was a great response. Also, thanks for your input on the gas engine, I have never operated a gas engine so I would have had no idea about the point you made regarding a minimum of 50cc before you get good verticle performance. I would have just assumed that since a 4.3 gas was recommened that it would have provided top performance. I know my real world experiance in the case of a 1.2 4-cycle YS/AC that I once possesed taught me that the 4-cycle swings a prop with more pitch than a 2-cycle and that is critical for vertical performance. Like my father used to say, you have to watch for what people "don't" tell you and because these manufaturers need sales I think they have a tendancy to leave out a few things in their descriptions of performance.

thanks again!

dave in MD