Hi! So lately I've converted my cheapo ABG to fretless (it also had a bump in the fb, so now I've taken that out, too, and made it more playable), but after sanding, the dust stuck in the grain/pores of the acacia fb... I tried cleaning it with lacquer-thinner benzine (similar to naptha) and lemon oil, but it's still there. It looks a bit weird with some parts of the grain not having this whitish dust in them, but other stripes next to them have... Anyone have ideas or some more methods? Thanks in advance!