RJM's advice about the recruiting aspect of your question is very good. Regarding your concerns about the fit of the schools, I think you should express your concerns to your son before his visits. That way he will have that info in the back of mind as he takes it all in. You know your son best and if you see some red flags, you probably aren't wrong. However, he's super excited about the love he's feeling from the baseball program so he's going in with rose colored glasses. He may inadvertently miss the red flags if they aren't on his radar. You can just say something simple like "I read that X School... sounds interesting. You'll have to check that out while you're there." Good luck to your son!