I recently switched to a high iron red clay. The clear I am currently using looks terrible on it. Reminds me of cat vomit. Turns the clay from a warm red/brown to a lighter cool tan. I will try and post a pic later today. The glaze comes from standard, MSD-29. I am looking for something I can make myself. Any suggestions would be greatly appreciated. Oh, and I have lost my book from Val Cushing.