Can't run a Seaducer with square drive? Myth busted! After over a year with a round collet drive I had trouble with a shaft and decided to try square drive. Handling didnt change at all.... Lower friction from the drive=more torque at the prop, so I can pull a bit more prop.
Milled 618 steel strut, INA needle rollers, MBA ball thrust bearing, Hales ejector pin cut down to a prop shaft.