Buffing?

ive ben doing deta fore 2 years and 1 year of this has ben nothing but nibing and buffing and i ues 1500 - 2000 grit and ues 3m buffing compound its a 3 part compound and it has a course compound u ues first called (2) like to get the 1500 grit scratches out or acid rain ect then there is a mid compound called (9) it gets out what the 2 left behind and brings the shine back to the paint and fore cars that are dark thers a 3000 compound that makes it somth as glass and after wax it is an awsom finsh