Question: Do highly academic schools like Stanford and the Ivy Leagues recruit later (Jr/Sr vs Fresh/Soph) due to the need for grade transparency?
Answer: To some degree you have answered your own questions. The highly selective academic schools such as the Ivy Leagues and the Baby Ivy Leagues can't make early commitments or request early commitments because they cannot guarantee admission. Most of the time, the earliest they can get approval for possible admission for the player is at the end of her junior year. That means they can't really request commitments before that time. Most admission offices want to see both test scores and 6th semester transcripts before giving a student serious consideration.