Great points guys.
@Tiggus That's why I suggested Kanan or Elder, to dispel the healing immunity...whether or not it blocks Protection recovery is interesting...
@Fahrius The cannon won't get a turn, so that's not really an issue. You can't use Jyn's AoE anyways because you have to keep the droids alive for EP.
Each time the B2 counters, there's a 25% chance to remove 10% turn meter AND it feeds Jyn 20% turn meter. Yeah, probably not perfect, but you're basically just trying to remove as many turns as possible before enrage...with a zeta on STHan, I don't think his health is the limiting issue on the run, I think the B2 would ego into enrage before STHan ever got in danger of dying, but this is why I'm curious to see if anyone has tried it :)