Yesterday was the first attempt to start and break in the O.S. .46LA. No luck, though, I think because my 12V battery charger does not work and the starter did not have enough power to turn the prop. Got a new one and will try again today. I have a question for you. Can I have over-tighten the prop nut? I know that a new engine is a little hard to turn at first. And a final note. This is not my first plane, it is my first kit. All my previous 4 planes where ARF's. Thank you all for the input.