If you use automation (like a hopper) to insert identical (stacking) cores into the silicon scavenger, you can put them all into the same slot. When the machine goes to move the silicon from one component to the other, the silicon part gets applied to every core in the stack.

To Reproduce
Steps to reproduce the behavior:

1. Place silicon scavenger and power it
2. Place hopper on top of scavenger
3. Take a stack of cores and put it in the hopper. They should all end up in the input slot as a stack.
4. Insert a good core in the other good slot.
5. The good core is copied over to the stack.
6. Repeating this process by sacrificing one of the cores from the stack you just made allows you to refine your cores further.

Screenshots

Additional context
You can use this to duplicate the best "silicon" part of a core from the stack, leading to some rather insane increases in core power. Right now I have some dungeon heart cores with a core power of 45, allowing me to make torus cores with over 100 core power. It is a bit harder, though, to make an insanely good torus core on top of that since those rarely stack.

Version
Minecraft Version: 1.18.2
Forge Version: 40.1.30
Futurepack Version: 33.0.7327

Logs
Maybe not applicable here.

https://bugs.mojang.com/browse/MC-175090

the vanilla hopper seems to never check if the contiar has a custom StackSizeLimit

I have a workaround for thia until mojang fixes this.

I was opretty sure #846 fixed this...

Hm. I'm using a modded hopper that inserts a stack instead of a single item. Maybe that is what is breaking it?

possible it doesnt doo all needed checks... can a vanilla hopper or pipes or the pusher also do that ?

Yeah, I can put multiple items in the input slots using a vanilla hopper, so this problem can be created using nothing but Vanilla + FP.