Clint, I have been involved in several ray tracing compitions over the years. In most cases, we found that once a month was TOO little time to do anything. More than 2 months, people lost interest. Therefore, 2 months turned out to be the perfect solution. One of the ones I still keep track of announces a new topic each month and you have 2 months to complete it. That way if you don't like the topic, you don't have to wait 2 months for the next, another will be along next month. I am looking forward to participating in this (as soon as I get a little better at Carrara.) Great idea though! Vern