Over the last four weeks I seem to have improved considerably. Some particular changes:
1) I was routinely being forced to call it quits by mid-day. I would make it home with a bladder clamoring for attention. Most of the time I would start freezing as I got out of the car. Sometimes the bladder made it and sometimes it didn't. The rest of the afternoon was spent trying to get back on.
2) Another routine was an hour or two of freezing prior to bedtime at 11:00 or so. Again, the bladder was a factor and sometimes I'd make it and others not.

Both 1 and 2 were the case 3 to 5 times per week. Now they are virtually gone. My meds have not increased and may even have decreased.

There is one negative. I have more dyskinesia. It is manageable but I am adjusting things to get it under control.

As to what to attribute it to, I only know of two possibilities. One is the potassium I wrote about. But that seems unlikely due to the limited time and amounts used.

The other is the elimination of wheat gluten. The timing is right and I have done well in not messing up. Make of it what you will.