I still have my old set of the "screw-type" props with prop locks. I have 4 brand new in packaging, and 4 that were used all of 15 flights...probably less AND 6 prop locks, than I transitioned to the QR system and will be sticking with that. So let's work somethin out, I know some of you guys got your goody package for the qr system and don't like the idea of them, I don't have any intention of using this older system anymore. Lets work somethin out - I pay shipping your way, you pay my way.