I have always noticed that my twin screw Z axis setup would get a bit out of sync from time to time.
I do not like how Creality had both the X-axis and Extruder motors on the left side, which is quite a lot of mass, when compared to the right side that had nothing.
I came up with a simple bracket that relocates the Extruder motor from the left side over to the right side better balancing the weight on each lead screw.
I now find that the two sides stay in better sync with the weight more evenly distributed.
I'm pleased with the results from print to print.

Creality

CR-10

No

Yes

.2mm

100%