Hi:
Been away over the holidays so just caught up with this one. I've been using the "silver/brass" polish system for about a year now and then using the RS cleaner/degreaser and tuner/lube afterwards. Like TomF said, you need to get the polish off. Haven't heard any reason to worry about this approach and I like it because it's a low abrasive approach compared to others.
Regards,
Ted