It feels like we are missing nice end game options of a version of decompiler that can support 3 mods and is a bit more faster as base speed. mayeb 3x3 or 4x4 in size.
It feels like letter voider was supposed to be next tier of letter decompiler, but its not.

Uhhh the letter voider only voids letter item inputs. It otherwise acts as a double speed decompiler with more module slots like what you're suggesting >w<

If this misunderstanding is a problem with other folks as well, I'll look into making the letter voider description more clear ^w^

Oh wow, this is definitely a misunderstanding. Because in a run of many players, nobody thought that letter voider can also work as a decompiler. The name literally suggests that it voids letters, and I remember description also focused only on voiding.
Yeah, it would be a good idea to not only change its description, but also its name. Something like Advanced decompiler. But just loud thinking that it would then also suggest that it decompiles letters.

tbh, I feel voider should simply be separate and different looking machine from a decompiler.
Something not from furnace series, because Furnace series feels like decompilers instinctively.