Follow up to my own post:

My errors seem to be related to an unbalanced data stream.  I
thought I had that covered, but I was sending a series of 'A'
characters (as in a series like 'UUUA').  The 'A', hex 0x41,
seemed to be enough to through the receiver off (0010 0001).

I had comments pointing to this issue all over my code:

; DON'T send more that 3 similar bits in a row

but of course ignored them in a rush to get something working
again.  Changing my preamble-sync byte to series to 'UUU*' is
now producing MUCH better results.

Thanks,
Kevin

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