Sanded with 1500 grid again and it's looking better. But instead of sanding down until there are no more shiny pits, this time I'm trying to fill up the pits before sanding again. I'm just experimenting here, but I want to avoid sanding down the tru oil too much again. Unfortunately, there is a week of lower temperatures ahead, yesterday it was quite warm (26-28°C) and the tru oil was drying very quickly. Today I need to be patient.

I'm almost out of tru oil and the new bottle is not here yet. So I just hope that the back and sides are a walk in the park compared to the burl top. Otherwise, there will be much swearing I guess.