I am in contact with them.
I added two washers to the left side of the bearing to close the gap on the right. The belt still fell through. I think a pulley with lips on either side is the only fix. Do you guys know of a pulley that's around 10mm in diameter?
Also, did you front CVDs come with set screws for the cross pin? Mine did not.
Here's a video of my first CS drift.