The beat the song is built on is one bar, played through bars 9-19, 21-23 and 25-31, and 29 more places -- 67.7% of every bar the kit plays. Learn that one and the song is very nearly finished.
It is played on hi-hat and kick, counted in sixteenth notes. On its own it scores 64 out of 100 -- a step up -- and the thing that decides that is the speed of the hand keeping time.
The whole song is 79 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 88 BPM -- and adds the notes back over 4 rungs, each with a tempo to reach and a gate to pass before the next.
Tempo goes 88, 104, 119 and 135 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 hi-hat and kick, in 4/4 at 135 BPM, counted in sixteenth notes. It is written out above, and it covers 67.7% of the bars the kit plays.
Bars 9-19, 21-23, 25-31 and 34, and 28 more places. The time is kept on the silence to start with, and it changes 1 time over the song.
64 out of 100 on its own -- a step up. The song as a whole is 79 out of 100: demanding, mostly on the speed of the hand keeping time.