I reread one of my old posts on gravity bleeding and you said that the MC should be "primed" before doing this to prevent an air bubble in the cylinder. Did you mean to bench bleed the MC first or is the air bubble normally trapped in the slave? I already have the slave set up on the gearbox ready to go but the master is not connected as I'm waiting for a pipe connector from Moss. I haven't had any luck with the other bleed methods so I'm going to try the gravity bleed.
Karl
Karl