I've done plenty of hand polishing in the past but decided to go a different route this time.
Started with a 15x1" RS lip. Sanded it with 180 to get all the clear off. Then took it up to 320 grit dry.
Then took a 1.25hp bench polisher and some nice compound and went to town.
This pretty much polished it, but then I took a softer wheel with the fine white compound and went at it one last time.
Of course hit it with mothers afterwards.
Here's what it came out like, and it took a fraction of the time that hand polishing does.