I altered the main button of my 2-step macro to be, more or less:
Flame Shock, LBx3, Earth Shock, LBx3, Earth Shock, LBx (1 or 2 I think)

I tweak the Lightning Bolt filler at the end based on when Flame Shock needs to be refreshed on target dummies.
Also, one requirement to make this work is the Glyph for lightning shield (I forget the name) that makes you never drop below 3 orbs. This makes a HUGE difference in many fights, since you occasionally get hit and lose an orb. This makes it so you never need to refresh it.