So, how often and when do you play it this loud?
I never play as loud as the Sheffield Drums test track example I gave - that was
just setup testing. If you can achieve clean audio 10 db SPl higher than you
ever need then it might seem wasteful, however, it ensures that distortion
remains ultra low at normal levels all of the time. Headroom is protection for
those odd recordings that stress a system in peculiar ways without necessarily
being all that loud.