I'm hoping someone can identify and advise about an issue I'm having with my National Panasonic SL 1000 (SP10 turntable). The best way I can describe is that the platter gets 'stuck'. Upon hitting the start button, the platter very slightly rocks back and forth. Platter spins when given a push in the right direction, and it spins occasionally when hitting start, but mostly it just seems stuck. I purchased and applied original Technics SFWO 010 spindle oil from KAB, but to no effect.