Hi Anthony,
You've already gotten great advice from two folks who are "in the know". And for what it's worth, I agree you should have them redone if you can.
That being said, I did want to point out that as much as fully customized LORs are the goal, in some high schools it's really a big ask. My DS's (and now DD's) graduating classes were the better part of 500 students with a major portion of those kids all requesting LORs in the same general time period.
Is it realistic to expect that a school Principal for example would be able to not only create hundreds of unique letters touting the special attributes of that student, and THEN ask him/her to create 10 separate versions of those letters for every College, SA, MOC, etc? When you do that math out that's several thousand letters in a short time period!
The crazy thing is.... some of the letter writers do exactly that. But not sure it's fair to hold it against the candidate for the ones that can't.