Yes, if you can establish a reasonable proxy and criteria for what constitutes a bounce. I\'d think about what I was going to do long & hard before I started if I was planning to do this by hand, which is what it sounds like you have in mind. Once you decide the parameters, I\'ll give you whatever thoughts I have & perhaps then we can convince some others to comment, so that you don\'t end up doing a lot of work & have to start over, a demoralizing event I have some experience with. I think what you\'re doing is interesting & a public service in a way & will do what I can to help. Best of luck.