Healers standing near you
What this means is that if there are no positioning requirements, you will be 25 or so yards from the target hit box. This is both to make sure that any totems you are dropping will affect the Star Wars Galaxies credits if required, as well as to make sure that your Searing Totem is in range. If there are spacing requirements, these come first and will generally see you just over max spacing distance behind the melee. Do not be afraid to explain this to the other ranged DPS or healers standing near you.