I've been bleeding for lots of decades. I do not understand how the ford way works.
When replacing a master I have always bench bled the master before install. It can be done after install. Then 2 man bleed each brake corner and or bleed clutch. Clutch bleed is 4 rapid pumps and as the 4th pump starts the slave bleed is open then closed at the bottom of the 4th held at bottom stroke. Do that about 3x and 95% success. Some hard to bleed clutches need more gyrations including angling car to move the high point in a slave. Some Ferraris are better this way. If you have air at the master trying to suck the rear calipers that's a long way. Sucking or pushing at the master never gets my pedal as hard as 2 man on the pedal. That's my story and I'm sticking to it.
Btw I have diagnostic tools, service lift, 4 welders, all kinds of tools but do not own a motive bleeder.
The vacuum procedure is not used for the brakes - only the clutch. For the brakes, the pressure bleed is best, and the Motive bleeder is hard to beat for quality and value.
On this shared reservoir system, it can be confusing on which method and when - all the more reason to divorce the clutch master to its own reservoir.