I just managed to pick the following in 16ths at 250bpm and in 6/4 time ^_^
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-7777-6666-4444-7777-6666-4444-
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Bloody difficult though. I could only keep it up for about 10 seconds before I gave up. :D
Nailed it till I got bored
Try 250, 4/4
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0002-0004-0005-0007-0004-0005-0007-0009-0005-0007-> 9, 11, 12, 14
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And so on, I'm sure you see the pattern (nice familiar aeolian) I play it up to 12th then let loose a bit.
Little arrow to show that it carries on. Its a good exercise to keep time because you can clearly hear whether your notes are falling correctly as its rhythmically obvious stuff and all the pedalled Gs (or Es in my case) make easier on the left hand than more complex playing. Its easier after that to go into something with less straightforward phrasings because you have the tempo well hammered in.