You have plenty of expertise. I'd probably drop a bit for plain hit. Your single target threat should be fine and I see you took the dark command glyph so you wouldn't have taunt hit issues, but since HB is based on spell hit, you'll want to get your hit up a bit to increase your AE threat and get more use from the Rime procs.
The 10 to all stats gem could prob be a stam gem. Guessing you may have used that for a meta requirement at one time?