I think the prop includes the gear box needed to making it contra rotating. I also think the lifetime warranty being a pretty decent reason to not try to rig yo

I think the prop includes the gear box needed to making it contra rotating. I also think the lifetime warranty being a pretty decent reason to not try to rig your own. I imagine it's the gearbox that they're sinking engineering and testing time into. They don't have any other contra-rotating products on market, so the gearbox will be new to them.