Go to the CO-OP and get an animal feeding syringe and a piece of clear ruber pipe.
Put the pipe on the end of the syringe.
Empty your brake master cylinder.
Fill the syringe with brake fluid.
Hold vertical and allow any air bubbles to go to the top and out.
Open the bleed nipple with the rubber pipe on it and squeeze the fluid until it appears at the other end with no bubbles.(might need a 2nd person)
Repeat for the other side.
Dont this a load of times and it works absolutely mint,takes all of 30 seconds a side.
Mechanic tried his pressurized yoke but got a shite result and this way it works.

P.S What kind of brake caliper/steup have you got on the rear?