Many people ask me how to play "Bohnam triplets" so I show them this first:
right hand snare, left hand rack tom, right hand floor tom, bass drum
you can either count that as:
1 trip-let two
or
1-e-&-ah
Both are useful as fills, especially early hard rock/heavy metal.
Once you get that into muscle memory, then set the metronome at about 80bpm and play quarter notes on the bass drum:
1 2 3 4
Now add right hand on floor and left hand on rack tom
1 trip-let 2 3 4
BD RH LH
Repeat that 20x
Once those are tight, even and locked in with the metronome, then complete the exercise:
ll:1 trip-let 2 3 trip-let 4 :ll 20x
ll:1 trip-let 2 trip-let 3 4 :ll 20x
ll:1 trip-let 2 trip-let 3 trip-let 4 :ll 20x
ll:1 trip-let 2 trip-let 3 trip-let 4 trip-let :ll 20x
Get comfortable with that before speeding up. Once you've got that then try play quarter notes on the bass drum as fast as you can EVENLY and repeat the exercise.
I've taught a lot of people this way, and those who practice the exercise as written (AND with metronome) are the ones who get solid, thundering triplets. Those who ignore the exercise and try to play as fast as bohnam right away usually ended up sounding sloppy and uneven. Your choice.
If I remember correctly, the opening for "Over the Mountain" is actually quads. I'd play it this way:
Right Left Kick Kick
SN= snare
BD= bass drum
LT= small tom
FT= floor tom
SN SN BD BD FT LT BD BD FT LT BD BD SN SN BD BD
SN SN BD BD FT LT BD BD FT LT BD BD SN SN BD BD
SN SN BD BD FT LT BD BD FT LT BD BD
SN (Flam) SN (Flam)
A little easier with double bass...
Enjoy, Rez