I play an Ele shammy, and I find that I sometimes use Fulmination, which then stops me being able to recast Flame shock.
I have a Flame shock bar and a Lightning Shield icon, is it possible to get the bar to change colour when it has 7 seconds left, and/or get my Lightning shield icon(or text in it) to change colour when 7 seconds left on flame shock.
Or as a last resort put a big X over the blizz fulmination icon.
I am hoping this will help stop this nasty habit of mine.