Originally Posted by
harky
When you reforge it pushes MM higher and BM lower, so the gap spreads. When you don't reforge it brings MM down and BM up, so the gap is smaller even though Marks still beats BM. If his non-reforged BM numbers beat your reforged MM numbers then he'll beat you either way. The point is if that is the case and he were to reforge to Mastery his MM numbers would then be even higher, though his BM numbers would drop under your numbers.
As far as Careful Aim, it will depend. What's your crit rate? The higher it is the less Careful Aim will mean as it's converting fewer hits into crits than it would at lower crit rates. Having that 100% crit on Steady means it's inflating those numbers quite a bit and by extension inflate your Piercing Shots damage. Then you need to consider cross buffs and such. BM provides the 3% damage buff, Marks provides the 10% AP buff and so on. You have to keep in mind the context of the test when comparing two specs output.