Recommend locking up the wrist - I don't believe it - at least I want to see how far it is possible to go with wrist motion.
While I would call it a "locked" wrist, minimal wrist action with most of the motion coming from the elbow with a heavy guage pick is the way to go.
Gypsy jazz guys do this at increadible speeds, and they all do it the same way.
"The music business is a cruel and shallow money trench, a long plastic hallway where thieves and pimps run free, and good men die like dogs. There's also a negative side." -- HST
^ Interesting :-?
OWA. If you play the piece your posted in 150bpm, each beat (and note) is a quarternote. If you play 16ths, you still play 150bpm, but you play 4 notes / beat. Hope that makes sense.
And - re. circle picking . I've been trying to do that once in a while with limited success - it feels efficient, but I have a hard time figuring out how to be able to play fast that way.
Thanks for all responses guys and gals
...only thing I know how to do is to keep on keepin' on...
LARS kolberg http://www.facebook.com/sangerersomfolk