Just dashing this off before I have to start pretending to cook Thanksgiving dinner...Here's a first cut at individual shot quality numbers. It's totally not self-explanatory, I realize, but in brief, this shot quality model factors in shot distance, man-advantage and rebounds. Empty-net shots (either team with an empty net) are excluded for the moment, but it includes all other man-advantage states. Rink results are also adjusted to equalize shot quality - otherwise the Rangers look like the worst shooters in the world.
I'll add a few other data columns plus on-ice shot quality (ie - all shots when a player's on the ice) and team-level data when I get a chance. And I'll document the model, simplistic as it is. Let me know if you have any questions.