I've begun noticing a slight worsening of balance and return of early morning shuffle-step in the evening before bedtime, and have just this week increased sinemet by one-half a 25/100 each day. Seems to be working. Still faithfully taking DM and CoQ10 to hopefully slow the decline. No major medical issues or psychological stressors, except for the passing of my brother-in-law, for the last couple of years.
Robert