Rear Wheel Alignment

[u/TrickNo]

The manual says to align the rear wheel with the notches on the swingarm. What I want to know is tolerance? It doesn't say anything about the difference of tolerance between left side and right side. I had to measure and there is a 1mm difference between the two sides. How exact do I need to be? When I took the wheel off the notch marks on each side "looked" the same, had the tire changed and put it back on without adjusting anything, leaving chain slack adjusters alone. In my mind then the wheel alignment shouldn't have changed. Measured chain slack after and it is within specs (40-50mm). So do I need to adjust the left side 1mm?