You know I cherish your comments, but don't feel obligated. I'm way down in the weeds and I know this is time consuming. BUT if you insist, use this version. I changed some things after studying the curve chart (it's the stuff in purple, for what that's worth). <img src=http://www.fotothing.com/photos/us/8772.jpg> <img src=http://www.fotothing.com/photos/us/8773.jpg>