I found this on the mod page under new, thought it would be a cool idea, after all, don't see why we can't have 1:3 or 1:4 splitters realistically... However it doesn't work. It only fills up 1 belt before splitting to another belt, and so on. It also fills in a pattern I'm not sure about. I did 1:10. 10 on top, 1 on bottom, it filled 1, 9, 8, and then whatever else after that. Each time I placed it the order was the same, so probably something in the game engine? Unless you coded it that way...
If you can get it to split properly would be fun to mess around with.