Has anybody experimented with running multiple one-loop ZPs along with your 3ZP stack?
E.g Your 3Stack + ASChamber for guidance once a week + Sanguine for optimism once a week + Executive for action/productivity
Not experimenting myself. Just curious if anybody has done this.
Overexposure and reconciliation are going to be your companions.
Not necessarily
Yeah, I did AsC once a week for about 6 months on. A full stack. I started calling Ascension Chamber my “recon killer” because that was the effect it had for me. However, Ascension Chamber is allowed to be run in addition to a full stack, so no rule violations there. 
Edit
Didn’t actually read your question. You’re talking about multiple additional subs. Nope, never done it. Haha, sorry 
Yeah I’m planning on running Asc chamber with my next stack
I’ve done this though it was before the ZP rebalance so you should have less recon if you try it out now. The subs I used as +1 where Libertine and Diamond, Libertine for clubbing and Diamond when I knew I was going to get laid beforehand. The results were within an acceptable range, that is to say that running 4 titles didn’t give me less results, the recon was also manageable as I always took an extra day off after running something not in my stack.