This more of a tweak than remix. I recently built a track that had a number of these spiral tiles in a sequence. It was very difficult to slow the marbles down, so that they don't slide off the tile. So I added a small 6mm crash barrier around the side of the tile.

In the file, I've included the original. The remix that adds the first version of the crash barrier. The second flips the spiral in an anti-clockwise direction with a different barrier. The barrier pieces are also provided. In the video below, I've blutacked the barrier on.

→ https://youtu.be/pM6denw2PoQ?si=px-LGHiVokKsjGUZ