The premise of the Needlerunners was to aid in the stopping of cross-contamination, blow-back up the tube. The rest are nice side effects.
They are a rubber band replacement. So in that sense, a machines needle clip isn't needed. When properly setup, they also lower the operating voltage of the machine up to a volt or so.




Quote Originally Posted by hendricksonart.com View Post
I have a bishop that I had trouble getting on withe because of the needle clip, now that Im used to it. I have trouble with machines that dont have one. Do these wind up acting like a needle clip?