I just finished up some gemming and reforging to balance out my stats, so I can confirm that this is accurate.
I regemmed for hit in all of my blue slots, then did some napkin math to figure out which combination of hit reforging would put me at the cap.
The result… hit rating perfection!
To me, this seems like the only way to go since Mastery is only available right now through reforging. Fill those blue slots up with hit baby!