Well said infieldad.....well said. I believe that is golden advice. I would attend the event that your son has the best chance to stand-out, and I don't think that is the Stanford camp. HeadFirst is more focused on traditional D3 schools. In the long run, he'll have some academic options but it would be nice to expand that universe and add some baseball in the mix as well.
In addition, for some of the elite academic schools with low admissions rates your son will want beyond 1900. He needs a "hook" whether it is academics, sports, music, business, etc... These schools value uniqueness, self-motivation, and desire to learn. Anything your son can do to seperate himself from other baseball players, or general applicants is where you want to focus your time and resources. Adding pitching velocity and adding points to the SAT would be my focus going forward. JMO.