Hello everyone, I went to fly today and I started my plane with the electric starter. It fired right up and I throttled back to much and killed it. when I cranked it with the starter again the prop and spinner broke loose spun around the shaft and flew off[] This also happened on my second flight with this plane. I know I tightend it enough. So what am I doing wrong? also, I bought two new props for my plane, both 10x6 one is plastic like the original and the other is wood. What is the real differance between the plastic and wood props? What is the differance between a flat ended prop(both new ones) and a tapered ended prop(the original)? Thanks guys