If the hose going into fluid from bleeder is in tact, and you don't let the master cylinder go dry, there wont be air in the system?
I almost died because I didn't have anti lock brakes, so I see the value in them. Dude crossed center divide headed right at me, I slapped brakes, no anti lock so I started skidding. Lucky for me he hit me early because my truck was skidding where if I had another 10 ft of skid he would have hit me on drivers door instead of front fender, by by Burla. I will never forget that skid, I was telling myself this is how I die. If I had anti lock the damage would have been in the center, as you can see it was dumb luck I didnt have more skid. Estimated 90mph impact, we were on freeway, between both trucks aprx 40ft of skid between the 2, he also had no antilock. If we both had antilock the collision would have been less. I will take this fancy braking system over non abs systems, just saying