I am having some problems deciding on an engine for my VF 66" Extra. I have a Saito 100 but that will most likely go on a different plane. Seeing that I am not going to use this for 3D, I would prefer a 2 stroke since that is what I am most comfortable with. I really like Irvine 2 strokes, but the problem is that they go from a 72 (I want something larger), to a 1.50. Now I am assuming the 1.50 is to much - or is it? I searched here, but only found a couple posts about more than a 1.00 in these planes. Is this 1.50 to much? Any other suggestions (other than OS)?