I have been to both cookiecons, taken classes from several cookie decorators and even sat with Julia uUsher and talked to her about royal icing. They use plastic bowls and spatulas and don't worry about the possibility of grease and yet the icing is perfect. It's like the icing wouldn't dare misbehave. being an analyst I have come to realize a few things. First, some people have a natural talent for decorating. Seconod, many things can effect icing and I have started using a royal icing recipe of someone who lives near me. Last, the key to better royal icing is practice. The more times you do it the better you will get at making and using royal icing. I still need lots of practice!