I am a high end madness assassin (in pve, at the least; however, I am fairly well known in the pvp community on my server as well) and using an electro staff, while some models may look sick, is a dps loss. Regardless of your spec or build, you cannot maul! Maul is on of my main damaging abilities as it tends to hit anywhere from 4.5-5.3k when it crits! So, in short, dont use them :3
and this is why I've been promoting this and putting in tickets constantly to try and get a dev response!