Honestly, I don’t know the ancient Chinese secret behind it. Something about being able to pump the living crap outta the system to remove all the air and keep the master constantly filled at the same time. I tried the usual methods and just could not get my master to properly bleed. Some way, some how, man, it worked. It also really isn’t much more difficult than the regular way as far as effort or complications.
You already gotta put a hose on each bleed nipple so you’re equal there and if you properly secure the hose to the master it stays put. Only difference I could see in the process is MAYBE spilling a slight bit more fluid in the changing hose positions to each wheel. But that’s more me not clamping the hose tight enough once or twice. It only requires one person which is a plus and you can sit there and pump and watch the air in the line go by until it stops.