I have never booked online and need to make reservations for a 2 bedroom and a separate studio at the 7 month window for a July 2015 reservation at Hilton Head. Since it appears that I can do that at 8am online vs 9am by phone I thought I might try it, but I have concerns regarding what is possible with complicated online bookings since I have a June use year and will need to use all my 2015 year points and borrow from 2016 use year. Plus I don't want to get started with all the borrowing while making reservations for a 2 bedroom only to find out there is no availability for the second reservation (studio) for my son & his wife. Would anybody have any advice regarding a complicated booking and what is available online vs giving up the 1 hour advantage on the first booking date at 7 months out?. I read all the comments on walking a reservation and don't really want to get involved in that but I am unfamiliar with the online booking process.