Pete,Nice new toy! I got one a few years ago and it was a great excuse to slowly work my way through my vinyl collection - one record cleaning (and listening) at a time. Now I feel I need to start over cuz I learned a few things in the process.I've tried quite a few different RCFs, and the most recent is also my favorite as of now .... L'ART DU SON. I mix it with the appropriate amount of distilled water and it works its magic just fine. Excellent coverage, excellent cleaning, easy cleanup.
I would keep using your Disk Doctor fluid until that is gone. His brushes also seem to be preferred by VPI cleaner users over the default VPI felt.