T-Dot is right about using the Sr. Certs, Golf & Massages. If you use a Privilege week or Bonus week, you do not get to use those. Also if you exchange down, you do not get to use those. When you exchange in there are other fees and you are not treated as well as an owner.
If you still have that nagging feeling - do rescind. there will always be more upgrade opportunities.
Since you are at PP, how are they progressing on the large middle building? They have had that under construction for 12+ years. what are they saying it is going to be now? At first it was more MP units, then they added supports to add the larger balconies for GM, but built it in another building.