So I was working with the belts and splitters some more and I realized the way splitters currently work.
They analyze each item that passes through and toggles a boolean for that item so that it will go down the other path next time it comes through.
For a belt full of a single item, it analyzes the ...

If you want to test your design:
1. Try to put items only on one side and see if you get even distribution on all belts.
2. Try with not compressed input belt (irregular spaces between items).
3. Try with mixed items.

1. I didn't test this but I know by the way I worked it out that it would just ...

https://media.giphy.com/media/3osxY5MXSxo62yzSAE/giphy.gif

I just got the game recently and was curious about some things.
So what I was trying to do is go from 1 belt to 4 belts with even distribution and keep them double sided.
If you just use the 3 splitters at the start then it ends up with ...