Well had a chance to test again with a scope on the Reset line and it seems I need to set the time.sleep hold low to 0.1 and recover to 0.2 to match the actual shown on the scope with the onboard reset which varied from 0.1 to 0.4 low, but was always a 0.2 recovery. With the figures I was using (and the default) there was no visible hold low on the scope.
Good news is I tried the other original style display (I bought another Texet on which the keyboard is dodgy) and I was able to set the key press values back to default. It seems to go in pretty quick and reliably now with the reset extended. I put my original display back in and it still works so maybe it was the reset settle time all along. The 365 is already on the way to SH but, I think that is probably a red herring. You never know maybe the specific chip has issues - I had already sent it before I discovered the reset timing.
Here is the manual, default and final view of the reset sequence...
