Loved the idea, started to have loading issues because they were starting to droop too much, just wasn't tall enough to keep tubes high enough IMO. My tubes gradually got back to where they were when new. Found good leashes that were for a badge to clip around a few tubes. works great.
https://www.amazon.com/dp/B07RLRN68P?ref=ppx_yo2ov_dt_b_fed_asin_title
The author remixed this model.
Much taller to keep tubes where they need to be.