Bleed from Master to Airpack first, then get to the rear most axle, bleed the passenger rear, driver rear, passenger intermediate, driver's intermediate, passenger steer, driver steer. Here's something that will puzzle the debate, I changed a master and an airpack before the rally. Bled from master to airpack, got air there but never got air in any of the wheel cylinders. Brakes worked great for the 190 up and back and some localized driving!!!! Brakes were spongy after replacement of parts, some suggested that the air went back up to the master but I never saw it!!! Keep in mind, the only brake line coming from the airpack was certainly exposed to atmosphere and covered with a ziploc bag while I was swapping in the new air pack!!!