[RC-Monster Mike]

The Teflon bushing should keep the spur concentric, but if one of the Ferodo pads(3 slipper pads) is not seated properly, it will cause the wobble you describe. the 3 pads need to be seated flat into the pockets of the spur gear for a consistent slip action as well as a true-spinning spur gear. I do occasionaly see a piece of flashing on these pads, but it is fairly easy to trim the excess flashing off the pad if it causes a less than ideal fit inside the spur pocket. :)