hey guys, so I painted my car A dark grey color (bc/cc) and I am trying to cut the clear coat flat. the problem is when I'm wet sanding it's pretty hard to see when I have it completely flat. I have to stop and dry the area wait for the water to evaporate and then I can see the dimples I have left. as you can imagine it's taking a long time to get it done. what I'm wondering is, is there anything I can use to help highlight the low spots? I tried spraying some sandable primer, but that just gums up the sandpaper fast. Y'all have any recommendations?