Hi mesaflyer,
Many ways to skin a cat? A method I use with my Saitos is to run a short loop (<2") of 1/8" brass tube fixed to the fire wall so the end is at the mouth of the carby and use fuel tube from the breather to the tube. In this way the oil is recycled through the motor and only exits from the exhaust. Dramatically reduces the grunge and cleaning time.
I saw this method written up in an article from Brian Winch (Oz engine guru, see Oz Airborne or British RCME magazines), I had my doubts but gave it a try and it works fine.
Cheers,
Colin