Thanks smart, those are some very handy pictures and beautiful work. I like the top rifle that has the steeper angle following the barrel flat unless that is a 2D illusion. Iktomi, it is similar to watching a movie where a mathematician has one of those huge equations written on a chaulk board and the end isn't in sight. Haha. Your the guy on the ladder righting numbers. I've been half way there in my mind for weeks and weeks. It's probably the most relaxing and most satisfying project I've ever tackled, - my two week stay in Thailand. My advice would be to make the plunge.