Expertise is one of the worst secondary stats that you can get in end-game gear by gems and/or offset gear. I'd suggest investing your expertise sockets into something else (red - 20 str; yellow - 10 strength 10 haste [if the socket bonus is at least 1 str/agi]) and not using things such as BQL neck and EoF cloak if you have Winding Sheet and Penumbra Pendant.