Patch 4.05 Machinist Rotation: To Overheat or Not to Overheat? Here are my findings.

[Elnidfse]

Hot shot wasn't in the calculations since it's the same multiplier on both rotations for the whole time. the 1.05 is for the gauss barrel that is attached.

You'll have to run your math through again. If these buffs were additive it would be fine to just remove them. If they are the same. But they are multiplicative and thus affect each other greatly when applied together. It's not something you can take out and keep something else. i.e; only apply gauss barrel because hotshot applies to both.

In other words:

It's not the case that it's 1.08 + 1.05 (1.13) vs 1.05 (1.05) where you could remove both from both sides
It is the case that it's 1.08 * 1.05 (1.134) vs (1.05)
That .004 looks like it doesn't matter, but it adds up when passed through another set of buffs, be it yours or other people's.