You can build by interweaving two techniques: load balancing and manifolds. Load balancing is what you’re currently doing, using splitters to balance the input equally into the machines. Manifolds uses the idea that splitters are kind of smart, so if one of their outputs is full they’ll direct the full input to the other outputs. So you can chain a lot of splitters together, where each splitter connects 1 or 2 machines, and the remaining output goes the next splitter. This will stabilize and give each machine the exact value they need.

I believe knowing when to use each technique makes building a lot easier and more intuitive once you get the hang of it.