I did solve the issue with the tonearm 'knocking back" lightly against the holder. I didn't fix that on purpose, but I noticed that when a record got almost to the end, the string for the weight was touching the tonearm mechanism. So, my hanger was a little out of place. I carefully bent it in a tad just to the point where the string doesn't touch. Still awfully close, but I do not think it's touching all through the record now. And now after that, my tonearm doesn't go back. I'll let TLS Guy look it over before I tweak anything else.