Stormblast Bolt combo suggestion

I'm aware of explosive grenade + sb bolt but what about voltaic grenade causing a storm rain like effect where the lightning forms connections and zaps periodically until duration runs out(duration instead of explosion).

I hugely agree. I BADLY wish that voltaic combo'd with stormblast. I'm running physical/lightning and don't want to run a detonator skill, but wanting to run stormblast for my current loadout. The inability to combo with it HURTS.