My point being, could one of the balances be overall more accurate than the other in which case having two balances is detrimental to time keeping? Given that a single balance is easier to regulate, practically a single balance might be the more accurate architecture ala the chronometre optimum. If it is a matter of shock, then would something like the Armin Strom be a better solution to synchronize the balances more quickly? Or even a single balance working at a higher frequency? I see how a double balance architecture could in concept improve time keeping, I'm just questioning whether that plays out in reality. I just wonder if it is like the traditional single plane tourbillion, romantic and beautiful but not necessarily something to drive time keeping.