I was looking at the bow skills and noticed that Arrow Spray has a nice snare of 40% for 5 seconds.
It seems that using that and poison arrow would allow you to kite indefinitely, at least long enough to get the advantage in pvp. In pve I could see pulling 6,7, 8 mobs and using this tactic.
So, do players have an immunity timer after they get hit with a snare or can you snare them indefinitely?