Does Darth Nihilus work under Vader (zeta) leadership?

I was thinking about trying Zader, DN, DT, DK and TFP/Sid. Two cool down increases plus stagger for extra TM reduction. Annihilate, culling blade and death mark provide huge burst damage. I'd have to gear up Krennic and get a zeta for DT to even try it so it's just theory right now. Anyone running anything like this?