For ringing you need to tune acceleration and junction deviation / jerk settings. But that is only gonna get you so far. You need bearings with a light preload that are still smooth and real precision bearings like that cost money. Loose bearings contribute heavily to ringing because when the stepper motor stops the carriage just wants to keep going. Sure it is a little more efficient on the power bill absolutely no load on the steppers but at the cost of salmon skin on the surface of your prints. If you don't like the price of your Misumi lm8luu bearings you would absolutely hate the correct solution for your problem from Motion Constrained. But on the cheaper end maybe you should give the polymer bushings a try. They have light preload on them and cant be any worse than the loose 4 point of contact or less Chinese bearings out there. no? https://www.vxb.com/Low-noise-Linear...BoCnAMQAvD_BwE