I was tickled to see 80, 120 and 180 being commonly offered, finally.
While building a kit, I do my rough shaping with 80, beginning smoothing with 120, final smoothing with 180, then finish sanding with 220. I sometimes do regular woodworking, and those grits work really well there too. However, if I have to remove a lot of wood, I start with 60.
Keep in mind that the one and only purpose of going to a finer grit is to remove the scratches left behind from the previous grit. Do all of your "work" with course grits. With that frame of mind, your sanding job becomes much easier, less frustrating and less tiresome.
edited: And when a grit starts getting worn or clogged, throw it away and get a fresh piece. It's just the "cost of doing business". No sense in wearing out your elbow for nothing. Using the techniques I mentioned, I don't mind sanding, and actually enjoy it somewhat. Either bringing out a shape (model), or the beauty of the grain (woodworking) is an enjoyable step for me. "The journey is the destination".
Last edited by Outrider6; 10-11-2020 at 11:32 AM.