Hi all, just need to clear up a couple of things. I have a RCS 215. The "Test Run" sheet that was included with the engine shows it was bench tested with a 32-18 prop. Now what I would like to know is what effect would putting a 32-12 prop on engine have?. I know there are other factors to consider but when I asked Mike at RCS what prop he would recommend he said a 32-8 and others say that is way to small a pitch for my applacation. I have flow my Waco on a 32-8 and it seemed fine, but I also have used a 32-12 on it and that worked too. Just want to be sure I'm not doing the wrong thing.