So before covering, you need to fill all the dimples, holes etc. and sand.

I start at 120, then 180, then 220, then 400, then 600. Then carefully clean it off with compressed air and try to avoid hitting anything with the parts

I am lucky enough to have access to plotters at work. So I create the covering scheme fullsize to match the wing/stab surface size in AutoCAD. I then plot that full size, use spray glue to stick it to bristle board or similar and cut out each of the pieces. Take care to figure out where the overlaps need to be, I make them about 2mm.

The best for cutting is on glass, it works so much better than on a wooden surface. For the really thin stripes, you want to peel off the backing of the covering and spritz some water on the glass then place the covering down and squeegee out the water so it sticks while cutting.

I didn't take many pictures of covering.