[translux]

Originally Posted by GixY2K

How do you wash the body/paint? Brush, mittens, sponge, towel?

I'm personally using the blue brush with the micro-bristles at the tips; I rinse the brush before dipping it in the soap bucket for more soap.
To dry, I use the soft jelly-blade squeegee to get rid of excess water and then I use micro-fiber towels straight from the dryer.

However, I seem to be developing these long micro scratches. And I can't determine where they are coming from. This paint can't be that delicate, right?

You're using the brush on the paint?
If so stop and get a high quality microfiber wash mit.
Also I would not recommend using a squeegee.
Either or both could be your source of scratches.