I hope everyone is keeping in mind that this is Jay's cooker. He designed it, and he builds them with his brother and crew.
He's also a longtime, and respected member of this forum. If you have questions, I'd suggest going to the source. If he has the time, I'm sure he'd be happy to talk to you.
Imitation is the sincerest form of flattery, or so I've heard. I'm not pointing fingers at ANYONE. I'm just suggesting that you go to the source of knowledge for your particular question.