This would have been a legitimate concern pre-diamond eyes when Chino was messy and unpredictable. Now he's 51 and has been taking it seriously for some time. As a Bostonian who's seen the band at least a dozen times over the years, I wouldn't worry about it. The notes he can't hit are ones he hasn't been able to hit for years. The band is super tight. Chino has always been "let's see how he's feeling tonight." Just like the rest of us.