During my attempt to make darts for VanO I noticed something that if no one else has pointed out I think that I should. Using O rings to hold your shafts and conversion points may not be the greatest idea. When making darts I check the concentricity of the threaded hole for the points and shaft by putting a point or shaft on the drilled billet and spinning it in the lathe. While doing this I put a shaft with an O ring on WOW did it make the shaft wobble, so tried it with a tip same thing only not quite as bad but still bad. In my opinion this maybe one of the things (maybe the worst) that could affect your darts flight not to mention it sticking ability that there is. Forgive me if this is a known fact already but they still sell O rings for this purpose. It's my opinion that a small dab of semi permanent thread locker would be much better. The nylon and plastic shafts probably don't need it.