Best thing to do as a healer, http://forum.square-enix.com/ffxiv/t...Healing-Macros use the macro's listed in the first post set it up for your heals, now even if you have to change your target to drop a big heal on someone, you can still very easily hit the tank with a heal. Also, if the person you are trying to heal just needs to be topped off, you can just hit the macro for their party position and never have to un target the tank. Granted this doesn't solve the issue of people running out of range, but it allows you just a bit more of a leeway if you feel you need to chase them down.