I have been reading this site for a few years now and have learned much from listening in on all these conversations. Just wanted to say thanks to all you old grizzly SOB's who have put in your time to spread the knowledge that you have had to earn over the years. I am myself an old grizzly SOB and I am still going to school everyday. I may not know it all yet but hopefully I can help someone, somewhere on here. Congratulations to everyone here that contributes as we are in a field that is starving for people with skills and knowledge. If we don't pass on our abilities then mankind is doomed to live in mud & grass huts, for no one can live, work, create, research etc. without a building to do it in.....There is a saying about the oldest profession on earth and its wrong, they meant builders.