>>290738436
Not him but it places extra pressure on the cable in multiple locations and either ends up bending the shit out of it or twisting it badly. I think ceiling mounts can still work but I trashed mine after a day because I could see it causing damage.
Here's my crude approximation of where the cheapest design causes problems. If you want a ceiling mounted pulley system then you need extra pulleys at a decreasing height to allow the cable to drop down to headset level gently and you want it coming in from behind you instead of directly above, ideally with some slack. Personally I just gave up since I didn't want to spend any more money on a system that would still need me to think about cable positioning.