the vanilla gun is a bit too innacurate, this is kinda tuned so that it has no gaps in the spread but doesnt overlap
and not its not compatible as they both do the same thing but different numbers

I'm new to the game and I'm very conservative with carrier gun ammo so bear with me, but is less spread on it a good thing? Seems like you want it to be able to hit more targets across a wide area? I can see this being great for use against ships though. To that end, is this mod compatible with the stabilizer mod? Thanks for your time!

it gives weapons a slight tweak
and every weapon i can
missile weapons, hardpoint weapons, and other weapons i cannot change because anything shooting anything with a mesh is off limits modding wise
either way you shouldnt notice it too much, a small tweaking to more or less just feel better to use
yes it makes some 20mm some amount more accurate, but the amounts are small enough where the specifics dont matter
best observed on the carrier gun, with the spread reduction less drastic than some mods

Could you give a little more detail on what this does? Does it reduce spread for guns in general? Will it make my 20mm cannons more accurate?

I see you figured out how. 👍