FWIW, like Ron, I never bench bleed a master. I put it on the car, bleed it a couple of times, the bleed the rest of the car, and repeat the process. I've found bench bleeding to be a waste of time, but a lot of people think it's a good thing, so YMMV.
The best thing I've done is JB weld a quick coupler into an old master cyl. cap. Then I set the regulator on my compressor to about 10psi, hook it to the master, and bleed away. It works great, forces air out better than pumping, and you can do it by yourself. Somewhere between 15 and 20 psi you will blow the cap off the master and blow brake fluid everywhere, so stick with about 10 psi.
You may have a little more pedal travel with the discs than with the old drums. The physics are that you have to move a little more fluid for the bigger pistons, which necessitates more MC travel, which means more pedal travel. This is where the ZX mc helps outs. When I went from 1 3/8 pistons to 1 3/4 pistons on the front of my car, I wound up with more pedal travel, but better brakes. This isn't a bad thing since it makes modulation of the brakes easier.
jt