When bench bleeding......I just held it against my body, ready to plug the holes, pushed the plunger against my work bench, plugged the holes and released the plunger. Make sure you have a plastic bag around you or something because you WILL get break fluid on you. I ended up a little messy but worth the effort and money not to buy a stupid kit. If you bench bleed it thoroughly, you shouldn't have to worry about a couple of bubbles. They will work themselves out with a good system bleeding. A good time to change your brake fuid. Just keep bleeding each caliper until you see new fluid in the tubing. You must bleed the brake system per manual instructions. I think its LF, RR, RF, LR. NOT POSSITIVE. I bought a set of speed bleeders to make the process sooooo much easier. You can do it by yourelf in about half the time.