There is a more recent concrete example. Christyn Williams down selected her list to exclude South Carolina. Dawn maintained contact, went on an in home visit and SC is back in the mix.
Perhaps another example from ND and New York City:
There was mutual interest between ND and Jordan Nixon, but when Jenna Brown initially committed to the Irish, Miss Nixon expectedly took the Irish off her list of finalists. Once Jenna de-committed from the Irish, ND reappeared on Nixon's finalist list and took an official tour of ND when the Irish's other three commits (Danielle Cosgrove, Abby Prohaska and Katlyn Gilbert) were also on campus. I'm sure Niele Ivey and/or MM hit the phone lines to New York City once Jenna Brown de-committed.
Of course, there's no guarantee this will work: Nixon has also toured UCLA, Ohio State and UVA, with Georgia coming up. Hopefully, news will be forthcoming shortly thereafter on that front. Although they only played together a year, hoping the Nixon-Danielle Patterson connection from Mary Louis Academy will play a factor for the Irish.
Stay tuned.