Since I upgraded my Creality CR-6 SE quite a bit, I've had a lot of trouble getting the retractions right. All the tests were only to test one variable on one print. So I created this test that uses a script to change the retractions during each print on each floor. It can be used to test distance and speed.

Every other floor there is a bridge that helps with stability.

I have personally used it for PLA, however I can't think of a reason why it wouldn't work for other filaments.

I use the Post Processing Plugin in Cura to change the retractions.

Command: Distance Starting value: X Value Increment: X Change Layer: 45 (size of the segment) Change Layer Offset: 10 (height of the base)

I hope it helps :)