Mouseover healing macros - some problems

[Bradykinn]

Then my best guess is that your hand is sometimes twitching on the party list and causing you to heal the wrong person.

I promise these cases aren't human error: I'm not saying I never do that, but i've replicated this problem while spam healing afk people in town.

On the macro discussion: The macros in this game are horrible and losing spell queueing sucks a ton, and i'd rather not use them. But I've got a decade of muscle memory from wow built in mouseover healing and no longer enjoy or wish to experience the click healing or targeting with the f keys that are my alternatives. If I could mouseover heal without using macros, i'd be all for ditching them, but as it is, I don't want to do f-key targeting or click healing.