also, if you have a decently long barrel (my Freak tip for sup air fields is a 14incher) you can use the side of the barrel to pull back the side of the bunker slightly, and get better coverage if you do it well.
Also, before the game, sit your team down and come up with specific names for each bunker, (wedge, laydown, nacho, etc.) so that there is no confusion when bunker names are called.