"Finally, if your son is on the margin with the test scores, have him retake it and see if he can get an improvement. Going up even 2 points on the ACT can make a huge difference, especially in terms of any academic money he can get. "
For the vast majority of HS players, this advice is more valuable in dollar terms than any baseball advice on this site! We paid for an SAT/ACT tutor that helped my son increase his scores considerably. The additional academic scholarship money received as a result more than made up for the tutor fees and test fees. Sorry not the OP's question, but this advice bears repeating and "shouted from the mountaintops" in the context of discussing HAs - continue to work on and re-take the SAT/ACT and if possible, use a tutor or test prep service. Can I get an Amen?
Ivy's do not give academic money. I didn't think any truly HA school did (since most all applicants are top-shelf anyway). I have seen instances where middle-of-the-pack schools offered substantial academic money to lure top students.