Ok, Yes I have decided not to go with a larger tank and the isolation mount. Thanks for the input. I'm going to set it up with a very conservative CG. I will go with the 14x4W Prop for break in and flight I think. I'll play with it. Are there any weak spots on this plane? Like I know with the Funtana 40 there seems to be a week point with the landing gear folding easily. Anyone had any problems with anything like this?