I think I have an edge in craps. How do I determine what it is?

I believe I have an edge when I am the shooter and only bet on my own rolls. I think I have an edge because of the number of rolls I have in each turn and because of the bets I make which are low house edge bets.

Now what stats should I gather up to prove myself? The win/loss when I am the shooter is easy to get. But what else is needed?