Thank you so much Dale!!
And yes, weirdly, patch 5 did not stutter, as the venerable patch 4 had been doing, then it came back with patch 6, which is weird, as comparing the exe's in the tools I have access to (am aware compiled binaries are not the whole story) didn't give me any hint as to why that could have been, I did gather a couple of theories, but wouldn't talk about them on an open forum as per the rules.
Cannot wait to try the test exe!
Salute
Steely