Sometimes hard to get stiff cables in, but that is to be expected. Work great.

Works so great, Great find. Thank you.

took a while, but works as intended, just need to print more.

Ball is a little to light for this application, a potential improvement could be introducing a spring mechanism that pushes the ball down some.

Works good after a small edit, but there wasn't a small lock to out or in just to keep it from accidentally sliding.

There was quite a lot of stringing at the top, and I wish there was a bit of a lock at the top and bottom to keep the looser cards from falling back down immediately after releasing the button.

Works wonderfully, and even the screw mechanism seems to have a small satisfying feedback. I wish the bolt action was a little quiter though and had some issues with the longer wall on the bolt action hole (where the support went) cramming into the inside piece and causeing friction on the layer lines.

Could use more space between the top and bottom of the inside of the insert.