I never had any luck buffing scratches out unless they are very minor surface scuffs.
If they are deep enough to qualify as scratches?
The buffer follows them and you just end up with shiny scratches.
If they are that deep, the only way I have found to get rid of them is hand rubbing them out with a flat block, progressively finer grades of black emery paper, and oil.
Then buffing as the final finish again.
rc