Purge -- all at once or staggered?

[Eloxy]

when your shamans instacast 4 purges at the same time 8 buffs is removed, tested and confirmed =)
I have all purges at once, and i clear a full buffed enemy with two hits on my purge button.

edit: spelling

[asonimie]

Purgex4 works fine at clearing buffs as Eloxy said. Resists will be your issue in pvp. The only reason you might stagger purges would be to clear a grounding totem quick first, in which case I would have first cast be purge, and second cast be 3xpurge. Make sure you set these castsequences to a very short reset, like 3 seconds.

Also, I would not recommend putting stopcasting in your purge button. If you need to stop to purge fast for any reason(doesn't happen to me often if ever), just jump. Stopcasting is much more useful for wind shear (when micromanaged, not as much of an arena / pvp issue for boxer shamans).

[Bovidae]

I simultaneously purge too.

vs Lord Jaraxis, the mages always yell at me