How to Remove Pit Marks in my 68 Tail Panel

bbab3 said
I sanded mine starting 100 and worked my way up to 1000. Then buffed to a good gloss. I used a Makita electric palm sander which leaves oscillating sanding marks which polish out easier than straight sanding marks.

bbab3
Question for you……. I have spent several hours sanding with 120 grit paper. I have made progress with regards to the pit marks but they are still there. Do I continue with the 120 until they are almost gone or gone entirely before I go to 300, 400, 600, 800 etc?