Are you sure you get RCI points when depositing? I used to be a Silverleaf owner and my deposits would get TPUs (trading power units), not RCI points. RCI is confusing that way. Weeks deposit as TPUs (something like 5-60) and RCI points resorts get RCI points (something like 20,000-90,000). This is just an example. You can tell whether you have weeks or points by the magnitude of the "points" you get.
If you are in weeks, and you have enough TPUs to get 2 (or more) vacations yes, you can get them. You just have to pay an exchange fee for each one. Some exchanges cost as little as 5 TPU, others may cost over 50.
Hope this helps, RCI can be kind of confusing with 2 systems.