This isn't about tank dps. Or comparing the tanks. So please leave that in the numerous other threads devoted to it.

My question is about swapping stances as a PLD mid fight. Since it takes a GCD, I assume it'd be an immediate dps loss to do so.

Obviously between fights/when a boss disappears is optimal. But I'm talking about when you have long periods of uptime on a boss.

How many auto attacks does it take to make up the loss of the gcd. I'm not the best at theory crafting.