I use 75% KY parasoy and 25% 4794 with 6% FO. I sell them as fast as I can make them. I added the 4794 to make my tarts a little harder, so it is easier to get out of the warmer, and they hold up better in transport. If I make soy tarts I use Eco PB, I think it is the best soy wax for tarts.