1. Yes, from what I've heard. Bschools understand that not all recommenders will have so much time to devout to another's application.
2. Of course if a recommender answers exactly how the recommendation form asks its good, but i dont think a letter answering all questions not in order (but covering the basic stuff) will be taken negatively.
3. Mostly high as guess, otherwise you dont want to get a recommendation from that person
BYW have you applied to any schools yet? which ones are R2?
I believe its yogurt!