Well, in my opinion the best "counter" is to just chop throttle on your BnZ pass. You lose the option of zooming, but you'll still be going faster then the other guy is. Ideally, you get a shot at a target that has misjudged your closing speed and it is going quite slowly.. unless he presents his side to you it is usually a fairly easy shot to hit.
If you miss it, just do a quarter turn away from the target (i.e if he is headed to your right when you take the shot, make a ~45 degree heading change to your left), and "extend". Go try to kill someone else instead.