Questions I'd like answered (with data)

I'll bet most of you have read Moneyball. A statistical approach is used by the A's (now more teams) to assess the relative value of a player and the summation performance/value of a team. Ultimately the principles are applied to "build" 90+ wins in a season based on a budget. Pretty heady stuff for us engineers.

Ever read Freakonomics? If you haven't and you liked Moneyball, you should read this. Nothing to do with baseball, but the author uses statistical analysis to understand if one action/behavior is a driver that produces certain results. Conventional wisdom is not always proven to be true. Some of the the author's assertions/proofs are a tad controversial (e.g. gun control laws do little if anything to curb crime)...but his data and analysis is hard to refute. A few more pracitcal examples include that air travel really isn't any safer than automobile travel (death rate) when adjusted for number of passengers/use. How about those baby seats in your car? Well, they really don't save as many lives as you would guess...or the fact that a parent's education level is much more tied to academic success than whether or not the family is intact or your child attended Head Start or you take them to museums. Its interesting reading.

But this, along with recent threads and other threads that have come up here time-and-again have me wondering...if we had the data, what would really be the answers to these questions:

* Does throwing curve balls at a young age increase the risk of elbow injury?

* Does throwing a LOT of curve balls add risk to elbow injury?

* Does throwing over 100 pitches in a game result in lower performance in the next game?

* Do pitchers who throw over 100 pitches regularly in HS have a greater risk of arm injury?

* Do kids who domninate (hitting or pitching) at age 12/13 dominate at any greater rate than their smaller (at age 12/13) all-star teammates at age 18?

* Do kids who have taken many hours of hitting lessons at a young age hit better in HS? in college? in the pros?

* If baseball beyond HS is the goal, what is the optimal age for your son to enter travel/elite baseball?

* After adjustment for frequency thrown, what pitch is most often hit for a home run? (the physicists say it should be a curve ball, most parents think it is a fast ball).

* Do atomic metal bats really increase the risk of serious injury to pitchers?

Got any others?