Subaru Black paint is very soft.
I would start with a finish pad and HD Polish. If that doesn't work, then jump up to a polish pad.
Also, I would have some ONR or QD ready to mist the the panel and the MF towel before removing the polish.
That will help reduce the marring of the paint as you wipe off the polish.
Having a good inspection light or lighting to review your work will really help.
It may look nice in the sunlight, but once you get it under an inspection light it may still show hazing.
I would do some searching on this forum and review anything related to soft black paint.