Knob is stiff while turning

[IndieMurph]

Not in front of mine, but it sounds like maybe the knob was fastened off-center.  Look at it from the side to see if one part of the knob is lower than the other.
I forget if it is a push-on or a set-screw.  If a push on, the actual pot shaft may be bent.  If a set screw, loosen the set screw, readjust the knob, and tighten.

Yep, that's it. I see white along a part of the button edge that is scraping along the bottom right side and can see the white plastic residue from the button.  I figure I can probably wiggle it a little to loosen it since there isn't a set screw.