You have my sympathies. Machine polishing can be hard work, particularly if you have to do a lot of paint correction. The first time I did my '75, one of my neighbours commented: "That's cheating". It certainly didn't feel like cheating!!
On the plus side, future sessions should be a lot easier now you've done the main correction, and you'll have a car to be proud of.
Oh, and don't forget the photos.
Cliff