Tim we have a saying in Australia. "Your barking up the wrong tree" Maybe you have the same in the US.
Anyone who has used a friction roller type rotary axis realises that a change in material diameter will not necessitate a change in settings. That is a given. Lets get past that tree and move on.
The point that needs to be made for other readers of this thread is that raster engraving is scaled according to the settings in "advanced parameters" and vector work is NOT. (neither is "run box")
The presumption that "both work fine in my friction roller rotary" so therefore both will work for every other friction roller rotary is wrong and is going to have users pulling their hair out.
As I said, your rotary has the happy circumstance of the out put ratio either matching or very close to matching the Y axis.
This could be argued to be good design and I would agree.
If you were to change the motor pulley on your rotary to either a larger or smaller tooth count and do settings to suit this ratio change and retry your example, you would find that the vectors now come out wrong.
Not every user of the AWC608 will have the same happy match of ratios that you do. The AWC608 will be installed in all sorts of lasers. Both home and factory built.
The settings on the "advanced parameters" are all to do with "when ratios don't match"
All of the above does not matter to either of us. We both know how to use our rotarys and understand the limitations of the controller as they apply to us.
BUT information that goes into a manual really should be correct.
Greolt