Recruiting 2.0 you could pull an offer from your backup options, and then recruit them again without a problem if you primary targets signed elsewhere. I have just found out the hard way, that if you have a guy very high, and pull the offer at the last minute to sign somebody else, DO NOT think that you have no repercussions. I pulled the offer at 4:45, and lost my primary target first recruiting cycle. 11pm-5am-11am cycles with max effort on my backup option, and ALL indicators are zero (120 points on a guy that at 4:59pm last night was a very high, with campus and twelve home visits, and considering me and) and I am not just low, I am the only school now showing as a very low on a long list of schools with higher status.
Be assured, you will pay a price for pulling an offer in 3.0.