been thinking about the Russle bleeders , they sound OK, but I have had where even after pumping and open/close the valve , and especially on a long distance to the rear wheels , an air bubble can still be caught in the line as the pedal can only push so far thus the bubble does not travel far enough to escape and when you release the pedal the bubble kinda gets sucked back in . A pressure bleeder forces it all out as there is volume being pushed but can get messy at the master cyl. The gravity way works too but takes time. Another way is the vacume gun that you put the hose on the bleed valve and hand pump the gun which sucks the fluid into a container and when you see no more bubbles then just close the bleeder, care must be taken to keep the master cyl full as to not suck it dry before you close the valve. These vac gun bleeders can be picked up at places like Princess Auto , I have one and it does work.