just cleaned the calipers/pistons front and rear and before bleeding the brakes i`m trying to get my head round how the system will work - according to the haynes manual and other posts i`ve seen, there is an order sequence to the bleeding procedure which makes sense. however i dont understand the very last sequence - rear caliper lower nipple, use the pedal. As the rear caliper lower nipple operates the rear middle piston how can the brake pedal be used to pump the fluid/air out as the middle piston is operated by the front lever/secondary master cyclinder on the front left fork? Am i missing something??