The metronome makes me rush, even if not consciously...and rushing in fast passages tends to lead into disaster.
My problem is that even though I know I must practice the fast passages more slowly first, it's really difficult for me to play in slower tempo...but it does help if I persist.
One thing my teacher always has to remind me is that when I have to move fast around the keyboard I must resist the temptation to jump into the keys, but move fast to the new position and then play the keys.
Patience is the key to playing fast I guess, and that's not something that comes natural to me
