Video demonstration:
https://youtu.be/0k6QQKSvqtM
https://youtu.be/mrqTRd3jeZY
https://youtu.be/d9Cy2Qmh8Hg

Comparing to 1.13 (last time I used this solution) items now not always fall through the following setup. Previously, since gaps between end rods are much larger than item size, they were falling through - now they are getting stuck on end rods. Items also sometimes fall through visually, but revert back due to server side positioning