Hello,

first of all, your mod is wonderfull and I replaced all my belt in my factorio factory; but I found some mistake between the speed of the underground belts and splitter referred the same color belts.

I try to explain better with an example: I tried to refill two chest, one with a cyan belt and the other with a purple belt and the "cyan chest" get full faster then the "purple chest", but if I put and underground belt (cyan and purple) before the chest, when the object exit from the underground belt have the same speed and the chest get fill with the same time.

I hope that my english and my example are almost clear.. :)

I understand the trouble you are having. The splitters functioned perfectly, until 16.17 when filters were added to splitters. However, for versions after 16.17 you may encounter issues with any splitters trying to run faster than 120 items/second. I have managed to get 170 items/second out of splitters, but it isn't consistently reproducible :(

I have not removed faster tiers yet because I am considering trying to add my own version of splitters that can run faster, though they would be a bit lua intensive and not very UPS friendly. Also, the faster belts do work, just not the splitters.

If you or anyone else can help with this, it would be much appreciated :) Sorry for the current troubles

Thanks!! Unfortunately I don't know how to help you.... but surely I will continue to use your wonderfull (and faster) belts!! I working to manage this "problem" with more splitters and belts..