Back for a bit.
I think your logic on Zippy makes sense, psy, that's normally not the kind of thing I look for especially d1. Voting based on relationships I like to do with evidence, and follow up on d2.
I'm happy voting any of skipper, pulsar, emcee, and can get behind zippy as an option even though I'd usually vote emcee first based on that connection. AG is similarly someone I prefer to have evidence+d1 interactions on and I haven't been taking roles into account and forgot he was tracker, I never vote that d1 on principle.