I 5 box with my pve team (dont bother respeccing or even gemming or enchanting my pvp gear :P). Getting to 1K rating is easy if you have the patience as you do not lose rating for losses - try to time it so you are queing against those "doing it for points" as they tend to quit the battle before it even starts - as you get more res you find that you start surviving long enough to blow some teams up so getting rating gets easier