Programmable Splitters

[Caver451]

Does anyone routinely use these? I never have. They seem superfluous, as you can simulate their behavior with smart splitters, which I primary use to shunt overflow. I tend to avoid having multiple item types on a single belt, unless I'm dumping overflow into a shredder...

Even if I was trying to sort overflow, a series of smart splitters seems... smarter.

Am I missing some useful technique by ignoring programmable splitters, or are they a niche item that are rarely, if ever, used?

[kLuns]

You can combine "any undefined" and "overflow" in one output. This results in less space required.
When you use a smart splitter and use only the overflow option you always get 3 items stuck in a random order inside the smart splitter.

For seperating a lot of items dividing over 2 belts.
Taking care of all items which can't be sunk with one list in one splitter.

[Enigma]

I have multiple things coming from different spots to a main storage facility using truck routes, and a series of programmable and smart splitters to sort whats coming in. I could do it with all smart splitters, but close to the truck station i use programmable splitters to sort things into different areas of the base then smart splitters closer to their storage containers

[>< V ><]

Probably depends upon play style.

I have satellite factories that build basic items and then move them to a central processing plant. I want my belts and trains to be delivering 780 units per belt, so I don't mix product on a line. Which then means I have no use for programmable splitters. If I need plates and rods, then I will build the satellite factory to produce 780 plates and 780 rods and then train it to the central plant.

I rarely use smart splitters as well. The only time I use smart splitters is for feeding multiple production lines with multiple inputs. In some cases, the resources will not distribute the way you want along multiple production lines without using the "any" and "overflow" from the smart splitter.

Oh, and I use them at my train stations, so if resources do back up, then they will overflow into a sink.

[Huren Ogeko]

I dont find a use case myself for them as anytme I want to use a sushi belt I am only ever taking one item off at any one place and the main difference of a programmable splitter is to split off more then one item at a time. For me the smart splitter is all I need.
What would be nice is a reimagining of the programming able splitter that does something even more.
some ideas off the top of my head are:
splitting based on a custom ratio or a fixed items per minute
ability to be controlled by some logic system to enable or disable certain ports when it gets certain signals.
some other ideas I cant think of right now.
its just right now its a smart splitter with the ability to make sushi belts out of sushi belts and I really have no use case for that myself.