i also tend to see, when moving toward a less quality print, a small line can be seen at the middle of the model. but yeah, that pretty much looks like what those setting show physically on the model
I think the Y axis backlash won’t be solvable with current software. I’ve also eliminated the X lines, but Y persist. I’ve torn the machine down and made sure everything is parallel / level / etc. The prints are good, but the transition during an arc in the Y + to - or - to + seems to be tough to get solved.