So my wife and I are going to WDW staying onsite from 10/19-10/23. As of right we are staying from 10/19 - 10/20 at CSR and 10/20-10/23 at CR. Since it's a short trip we'd like to be at CR the entire trip (once we went deluxe we couldn't go back) but there is just no availability at CR for 10/19. So I was just wondering if anybody has experience with these types of situations. Do people cancel often? When is the best time to check availability? Any tips or info would be greatly appreciated.