There are a few people who went to US THP shows before the whole remainder of the tour was canceled, and they said Chester was in the best vocal shape they've heard him in years. Mark from LPL being one of them (who said it's in great shape), and he's gone to close to 30 shows if not more. Point being: Chester's voice goes up and down, much like any performer. There's tours/nights where he sounds absolutely legendary, and other nights where you worry for his voice. It's gonna happen.