When I began using Createx paint, I used 10% of water max when I was working on paper, and was using Liquitex medium when I wanted to dilute more.
But at the end, I was using only Liquitex medium, and sometimes a bit of water if it was not diluted enough and needed just a bit more.
I have to admit I had to dilute the Createx paint to get good results when I was working on paper because of the lower pressure (20-25 psi) I was using. Undiluted, it was a paint to use.
I was working ok undiluted for t-shirts because of the higher pressure I was using for t-shirts (50-65 psi).
About Future Wax:
http://www.swannysmodels.com/TheCompleteFuture.html
Gilles