Quoted from j_m_:
as far as any media "enhancer" like flitz, I typically add about an ounce worth
When using flitz in a vibrating tumbler are folks using the liquid or mixing in a dollop of the paste?
From Flitz Product FAQ's
About Flitz Polish :
What is the difference between the Paste (tube/can) and the Liquid (bottle)?
Besides consistency, the paste has the most concentration of cleaning power. The paste also has an added ingredient for longer lasting protection. This protection will keep your shine the longest.
The liquid is not as concentrated as the paste, but will give you comparable polishing results on most surfaces. The protection will not last as long as the paste, but it will last longer than most other liquids on the market today.