I saw this video of Victor Wooten’s extreme time exercise where you use a drum machine that cuts out:

(((edit: the video has been taken off youtube…)))

and in response made this 100 BPM 4 bar drum loop (with progressively more and more of the beat cut out) to practice with:

If there’s a good response to this I’ll make more of these (different tempos and possibly other time signatures.) I practiced with it myself yesterday and it seems like really good timing practice.