[blturner]

I 3D printed a gear for this motor for aerial assist. I was trying to get as compact as possible and could not get enough reduction in the space allowed, so I used a ring gear on a flat plate. Regular ring gears are expensive, seldom available in the size you want and can't be made on a flat plate. The ring gear also makes a slightly stronger contact area.
The gear is sized to mount on a 1/4 inch bolt centered in a 1 inch square tube. I strapped the motor to the tube with a hose clamp and some double faced tape.

It was not strong enough for handling the huge balls in aerial assist but would have no problem with this years small ones.

I would also like to see a gearbox that matched the mount holes of the versa planetary but that might be too compact.

As to the usefulness of this gearbox/motor verses the more powerful ones. Most teams can 3D print this for less than 1/4 the cost of a versaplanetary and you can stall this motor for a lot longer than a 775pro.