My intention with the army is to hold to a unified scheme of turret/helmet colours to denote squad type:
Assault - Yellow Tactical - Red Heavy Support - Blue Command - ...?
Of course now that I have the one and only Heavy Support vehicle in my army started, this Baal Predator, I'm really not sold on the blue turret. This is only the base coat and a wash so the highlighting may help bring it together... but it's so.... blue.
I've had horrible luck getting feedback on this model as well so I think I'm going to set it aside for awhile and work on something else. Or at least not work on the turret.