It is rare to find someone in the pizza business who doesn't claim to use secret recipes. If you didn't post your preferment Lehmann recipe, it, too, would be a "secret" recipe, but with greater justification compared with most recipes I know of that are far simpler and basic than yours. If you were Italian, you would be saying that you are using "secret" recipes from Italy. I've never heard anyone in the pizza business say that they are using secret recipes from places like Poland or Turkey. It's always from Italy. In Thompson's case, however, he maintains tight control over all of the processes, including dough formulation and sauce recipes (he prepares and controls the spice blends). Intellectual property laws in China are far less developed than in the U.S., with lax enforcement, so one has to be extra cautious to protect trade secrets and other property rights.