I’ve been extremely cautious about making sure I stayed hit/expertise capped… so cautious that I forgot to check for massive overcapping and had my hit gemmed up to 318 rather than keeping it close to the cap… gems that could have been [and now are] used to add to other stats.
Just a reminder to everyone else – check for OVERcapping as well as UNDERcapping! 😀
You Yank It, You Tank it: Blog of a Tanking Death Knight Lady 
This is the worst part about T9. Not sure how T10 will go but It’s been way to easy to pass the cap on hit without even geming or enchanting for it.
And tier 9 killed my expertise rating, sadly so I had to gem for it.
Yes, and sadly some people still complain when you want non-hit pieces as a dps. The problem is that Blizzard inflated hit rating on gear along with all of the other stats, but the hit rating cap has stayed the same.