Old habits die hard. I tried the
/stopcasting
/cast Shadow Bolt
macro a few nights last week, and it takes getting used to. For instance, I unconsciously spam the SB button while a cast is already in progress, and end up cancelling the spellcast that is already in progress and ended up losing DPS. Get used to the macro first, otherwise you'll find yourself mashing your nuke button during the "burn" stage of a fight and realizing you're not casting anything.
