Plastering work Q2 - Painting work afterwards?

I did everything with 240 grit, but at least for me, quite a few scratches remained that showed up again when painting, even though the wall felt totally smooth by hand (and I don’t have much callus as an office worker). However, since you’re going over it with textured roller plaster, you can probably either go straight to 120 grit or stick with 240 grit. However, my plaster was bone dry; I don’t know if you have to approach it differently with "wet" plaster. Try it out on an inconspicuous spot (under the stairs or something). Addendum: I just saw that the workers for the ground floor use 120 grit, but they use a random orbital sander. I used a rotary sander. By the way, I couldn’t handle the sanding pole at all (but that might be me).

Exactly that slipping all the time and at the same time sometimes no removal at all in other spots. Maybe my old Parkside giraffe is also too weak. I then preferred to work with the cordless orbital sander for hand use and with a ladder. That way I could reach everywhere, and you have much more control over everything. Especially since you can always feel with one hand immediately. In the end, that was really fun (except for the dust).