Hello. I am about to try out the WASC for the first time for a Dukes of Hazzard cake. I wanted to do marble, then realized I had only 1 box left of marble. Anyone ever mix cake mix flavors? I was thinking about mixing white cake mix with the yellow cake mix that comes in the marble box and preparing as suggested on the WASC recipe, and keeping out 2 cups of batter then mixing in cocoa to the 2 cups. Any idea if it will work out?