I used the mothers before masking off the lip of the wheels, just a trial to see if it helped in keeping overspray off and it worked great, when the overspray got on the area with mothers it wiped off, should have taken pics. The paint edge was pretty easy to get straight, I painted a little too far and then took a rag with a little laquer thinner to get them straight, there is really thin lines on the Mesh's so I could line the rag up in that line to wipe them straight.