FBR...you are right about me being around here for a while. I have learned a lot from you and others by listening and reading. For curisous minds like mine I'm now trying to learn the science behind the basics which helps people pass with dilution. Maybe I tend to get a little deeper with my questions. If that bothers you with your responses (which it didn't seem to this time) I hope you overlook me. Thanks for all the wonderful input you supply to this forum. It doesn't go unnoticed. :thumbsup: Have a great day!!!