I find that I rarely use Novus 1. Do use a fair bit of Novus 2 and 3. I found using Diamond Bright (from RTBB) gives incredible results for the final clean and polish on Diamond coated playfields.
Thats a point I missed - I used Novus 1 - once - did nothing ! Shellite, Nifty and Novus 2 are all you are ever going to need.
