Hello! First of all, thanks for your mod, it's really great.

One thing I've noticed - your loaders do not behave like stack inserter.

There is the GIF illustrating this
https://imgur.com/Kp86sx4

From top to bottom:
- default stack inserter taking 16 items from the machine and placing them to the belt
- default loader taking whatever is there and placing them to the belt (with no stacking if there is not enough items)
- logic controlled loader working with condition 'red_circuits > 7' ( https://imgur.com/ta9BVUf )

What I want - loaders works as stack inserters, I mean, they wait for items and then output them with stacking only.
I can achieve somthing similar with logic, but this is annoying, because in every setup I must to find exact number for it to work.
In other words I can't just set condition 'some_item > 7' in every case. The machine can output just 7 items and then stuck ( https://imgur.com/wC0MiOe )

Is it possible to add this mode? It can be enabled by checkbox like 'Simulate stack inserter behavior' or smth.
v 2.0.39, checkbox 'override stack size' does noting on this.

Thanks in advance.

This behaviour occurs even if you have it pulling from a fully loaded box. The problem isn't that it isn't waiting for a full amount, the problem is that the stack loaders are grabbing like 10/20 items per iteration, then splitting that onto the belt. I did notice that if you force the belt to send one item to the left and one item to the right, this behaviour does not occur and the belt is properly stacked.

Well, I read about this (https://mods.factorio.com/mod/loaders-modernized/discussion/673d141f19c2fc558c23fc5c), but it is about belt compression, right?

What I mean, it CAN wait for more, but doesn't do this, even for 4 items or smth. If 4x items is there - good. If not - just pull whatever is there. And when machine is slow, it pulls like 1-2 items, so there is no stacking at all.