None at all, I have to spam interact to target, and when I heal its like I spam interact to target so much. Its still going even when I don't push the button on my pallys.

However interact to target isn't even binded to my priest, and the FTL DPS key isn't set to go to my priest either. Yet, when I push my priest heal hot key, after hitting interact to target 20x. The heal finally casts 3-5 secs later, or it just doesn't.