another point I should have mentioned, I discovered that when I started doing this, I was cleaning like I was a human electric toothbrush (zippy fast) but I found out that slower brushing with more pressure works better than fast and light brushing for me.
also rubbing on the cleaner by hand, waiting a few minutes, then rubbing on the Brasso by hand and letting it sit for a few minutes before beginning to clean in earnest seems to help.