Starfinder dobsonian fix

Hi, I have a 16 in. Meade starfinder dobsonian. The teflon bearings were very sticky so I moved them down further in the mount. ( I just moved the teflon a few centimeters down.) This worked alright, but it is still sticky in near upright positions and I want it to be silky smooth with still some friction to keep it from falling down. Anyone know any way to permanently fix this problem? thanks