Unless you only want to go to Maui rather than stay at a MVCI in Hawaii on points, I was successful in getting the Kauai MVCI last year on points. I kept checking for Maui & Kauai online as much as possible, and one day Kauai opened up. I believe it was maybe 3-4 months before our scheduled flight to HNL. I waited to book the inter-island until I knew where we would be going.