It is very hard to get a 1-bedroom (because there are so few) in June or July. We had to be very flexible summer 2002 for our july reservations and then ended up having to get a 2 bedroom. Don't quite know about the studios. I think you are early enough in the summer season and I would call on the first day you can make reservations and ask them how booked they are for your time and then make a decision about making day by day reservations. I have been a DVC member since 1994 and have never had to do day by day reservations and think it only backs up things in MS for others. This had included very busy seasons, resorts, etc. You will love HHI if you haven't been yet. We added points there to get some 11 month points!
Connears