Thank you for the nice kudos, PGStaff, I am a big fan of what Perfect Game does.
Am also generally aware that PG has very sophisticated proprietary analytical tools that you can apply to your extensive database that make life much, much simpler...but, not having access to those tools I do the best I can with the public data and a hand-held calculator.
I have no complaints, though, it is really stimulating to consider important questions that seem to come up over and over again and then try to craft an approach to some possible answers.
Basically, most people with clear goals in mind are just looking to build a road-map that can give them reasonable pathways for getting to where they want to go and a basis for estimating how realistic their goals might be.
Keep up the great work--if you have any openings at PG shoot me a PM!