Maybe try the Export Player Stats feature (on the League Settings > Functions panel, right side under Import / Export). Then you can pretty easily add SB's & CS's to get attempts, and also I'm thinking you're on the right path by looking at a ratio of SB Attempts to Plate Appearances to differentiate between high-attempt guys vs low-attempt guys, and those in the middle... And of course all of this will need to ultimately be compared to real-life stats.
In the beta forum, Lukas has expressed the outlines of some testing that should happen for this at some point. The details of what he means is a bit beyond me
but I wouldn't be surprised if he reaches out to you, given your interest & willingness to help out.