I just got my new Pro 5 and used it for the first time to make a cake. Upon adding the flour, I got a deep dusting of it all over my kitchen. Adding the milk was no better. OK, I was shopping for a second mixing bowl for the mixer, now I see that the splatter guard is essential. *BUT* I've seen KA mixers used on the food network without a splatter guard, and it wasn't a mess. Did I do something wrong?