If you are looking at June-Aug 2013, and staying on the BI is your priority, then I suggest that you also search for other properties and not just limit to the 3 Hilton timeshares HGVC--Kingsland, Waikoloa and Bay Club--all in the upscale Waikoloa resort area (20 minutes north of Kona). Hilton has already done a big deposit of units into RCI in May 2012 for summer 2013. Thus, the chances of getting summer HGVC are less after May, although you still have a decent chance of getting Bay Club, esp. if you are looking for a 1 BR. If you look on TUG2.net and look at the bulletin board (similar to disboards), you can find lots of information about the Hawaii resorts. good luck. Elaine