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.