>>5374097Most of the time when I encounter nub marks and it is an eyesore, I find the gundam marker of the same colour and colour over it. It is hard to notice from a glance, but unfortunately grey is pretty hard to cover up and if the gundam marker is a tad darker than the original colour, it will make it stand out more instead which is shitty.
But if you really want to get rid of them effectively, sanding is the most efficient yet slow method, but I have been terribly lazy about buying more sandpaper equipment myself. Oops, should have made it my new years resolution to get some better tools.