My method:

Tank 1: Idle, then drop some after run oil in, and drop the piston to the bottom.
Cooldown
Tank 2: Repeat of step one
Cooldown
Tank 3: 3 second passes at 1/4th throttle, then after run oil, and drop the piston.
Cooldown
Tank 4: Repeat step 3
Cooldown
Tank 5: 3 second passes at 1/2 throttle, oil, then drop the piston
Cooldown
Tank 6: 5 second passes going from no to full throttle, oil, then drop the piston
Cooldown
Tanks 7-12: Easy driving! This is usually when i replace my plug with a nice mccoy plug

After 12 i start leaning out.

At about tank 15 I have it fully tuned, and broken in.

(I'm very carefull when i break stuff in :])