As long as they're all grounded together for continuity,No it shouldn't. Well my thinking and i might be wrong in it.. With the thin piece of paper/tape around the shaft when you go to put the knob on. The material would be pressed into and conform with the grooves/splines on the shaft making the fit tighter. If you use glue in the knob you'd fill in the grooves..If you use just a little to much glue? Then what? It wouldn't be easy to get the glue out. You don't want to have to force it on. Tbh i think i'd try what i told you not to before i'd put glue into the knob. Maybe i'm over thinking it though.