So I went ahead and removed the left spindle and packed some grease in. The first time around I packed too much and it was difficult to spin. I wiped most of it off and reinstalled it. The pedal doesn't jitter anymore, and clips in easier for me as a result. But unfortunately, it also doesn't fall into the normal position when disengaged. For some reason, I still find it easier to clip in. I'm hoping that the grease will work in over time. Otherwise, I may have ruined this pedal. I'll probably do the right pedal if I'm satisfied with the results of the left.
Last edited by vikay; 10-28-19 at 03:55 PM.