The beat the song is built on is one bar, played through bars 62-70 and 97-119 -- 27.4% of every bar the kit plays. That is the spine of it; everything else is what happens around it.
It is played on ride, snare, kick and hi-hat foot, counted in sixteenth notes. On its own it scores 50 out of 100 -- a step up -- and the thing that decides that is how many notes a second it asks for.
The whole song is 70 out of 100, so the beat is not the hard part: what costs you is everything around it, the joins and the fills.
A part this hard is not learned by playing it slowly and hoping. The room opens it on its simplest reduction -- the timekeeper alone, at 79 BPM -- and adds the notes back over 3 rungs, each with a tempo to reach and a gate to pass before the next.
Tempo goes 79, 92 and 105 BPM, and the gate at each one is 8 loops in a row with no wrong note and no wobble in the time.
PRACTISE THIS BEAT →A one-bar groove on ride, snare, kick and hi-hat foot, in 4/4 at 105 BPM, counted in sixteenth notes. It is written out above, and it covers 27.4% of the bars the kit plays.
Bars 62-70 and 97-119. The time is kept on the silence to start with, and it changes 5 times over the song.
50 out of 100 on its own -- a step up. The song as a whole is 70 out of 100: demanding, mostly on the independence between the hands and the feet.