No picture, because it would look just like the last one.
This time I did the same test, but duplicated the operations.
I set the original operations to have "extra offset" = 0.2.
I measured the parts at 5mm down from the top.
CV ( conventional ):
x width = 19.99mm
y width = 19.94mm
CB ( climb ):
x width = 20.01mm
y width = 19.98mm
Conclusion: Doing roughing pass, then finishing makes for much better accuracy.
Also: My machine seems to cut smaller in Y, than in X. I wonder if the direction of the grain has any effect? ( I can think of a way to test this ).