Mike, It's said the definition of experience is someone with a history of mistakes behind them. I think creative teachers are always on the the lookout for something new and interesting, which usually involves a bit of trial and error. This is what contributes to growth and improvement. Sometimes we have to make mistakes in order to find what is appropriate. To always stay with what is safe may become staid and stale. Noone wants to make mistakes, yet in making them, they can be a learning expeience in themselves. Barry Westling