I have heard different opinions on this, but I have a friend who is a very proficient black metal drummer, and he says that you have only truly 'mastered' a given BPM if you can play 16th notes for an HOUR solid without having to slow down, or play irregularly (due to fatigue and/or technique breakdown).
So, he hears lots of drummers say that they can play at 250bpm, but these drummers cannot actually sustain an hour long continuous blast-beat/bass-drum roll/snare-roll at 16th notes at 250bpm, therefore they can't really play at 250bpm, they can only play short minute-long bursts of 250bpm.
Do you agree that the above is necessary for mastering a given tempo?
So, he hears lots of drummers say that they can play at 250bpm, but these drummers cannot actually sustain an hour long continuous blast-beat/bass-drum roll/snare-roll at 16th notes at 250bpm, therefore they can't really play at 250bpm, they can only play short minute-long bursts of 250bpm.
Do you agree that the above is necessary for mastering a given tempo?