Seems to work well so far. I found that an M5 bolt worked better than the included spring cap model.

For my application (Monoprice Mini Select) I would need to make up 1.5mm of height in the design to get the top of the bearing to sit flush with the end of the stepper shaft. I'll have a crack at it down the road in fusion when I have the time to rework the stl models.

Cheers!