The front and rear driver side is easy as the hose alows you to place the jar where you can see it, but for the passenger side I look under the car at the jar while pressing the peddle with my hand or foot to see what is going on. You can lie across the car and hang your head out the passenger door as you press the peddle as well. It can be rather relaxing lying there on the floor...
If it's a little less than bright in the workshop, I put a light behind the jar.
Panthersteve wrote:
Also wondering what you mean by "I allow the peddle to flip back up to reload the master cylinder from the resevoir instead of drawing back in through the tube"
I release the peddle to allow it to fly back to it's starting position as fast as it can. The one way seal in the master cylinder will recharge from the resevoir instead of trying to pull fluid back up the line. It's not
really required to do this however. The resistance of the lines due to the length and the fluid viscosity restricts backward flow, as does the restrictive nature of the bleed nipple.
I bled the resto's brake system up using this method (as I have for many years) and had the entire system bled to 90 percent in 20 minutes. It works exceptionally well.