I don't get to play my assassin alt much on raids, so only had this Clockwork Menace parse, but here:
While my assassin is in kinda crummy gear (mostly KoS fabled and EoF legendary), I feel that it's a great earing compared to alternatives. Granted, I did have templar and dirge buffs in that group so it proc'd more than normal, but after considering proc dmg and the +piercing, it's pretty good if you aren't killing avatars.
So I think what most assassins here are trying to say, don't post misinformation Gonzo when you don't know what you're talking about. Crushbone earing remark, hahaha