Here's my favorite for black:
1ZPP - polishing pad (maybe cutting pad on REALLY bad areas, if you have some, followed by polishing pad)
1ZMP - polishing pad (green
Sonus pad)
AIO - finishing pad (blue Sonus pad)
SG x 2 - applied with finishing pad (grey Sonus pad) /removed by hand (SG is hard for me to work with down here but it should work great for you, awesome durability for the winter)
Souveran x 2 - by hand (or P21S since you already have it)