That's the input I was looking for - thanks. I've been a pattern flyer for about 10 years so I hope I can handle the wilder Flip. What engine is good for it? I have an O.S. 46 FX, but I also have 2 YS .61 LSRE pattern engines from my 60 pattern days. One of the guys at my field has a Flip and had to put a lot of lead in the front to balance it using a .46. I'd rather add the weight with the engine than with lead. I soft mount everything these days so maybe the .61 won't shake the Flip apart?

Thanks