I mean that you already knew you had a 56V driver and that the QBs were 54V. And you seemed to know the difference between parallel and series wiring. So you already knew that driver would work. But you asked anyway – OK, nothing wrong with that – but despite knowing it yourself, and getting answers that confirmed it, you still doubted it.
So anyway, Rocket is right – you are a good-natured person – and I'm sounding like a bit of a dick, so I will leave it there. But I dunno, maybe go back and read through the answers to some of those old driver threads because there's a lot of good info in there for you to learn from to help you make these decisions. I'm sorry for being impatient with you.