This system has worked for me over many years and many different vehicles. On a Caterham engage the handbrake. For a new bleed fill the m/c with fluid and open the furtest away rear bleed screw. Attach a bleed bottle. Using what ever means, hand, foot, long piece of wood, depress the brake pedal slowly until fluid comes out. Close the bleed screw. Attach a second bleed bottle to the diagional other side front brake, open that and the rear bleed screw. This allows a dual master cylinder to be depressed all the way. Bleed until no apprent bubbles seen. Close bleeders, do other side. You may have to repeat this sequence. You can also do this side to side.