I don't think I understand your question, but perhaps this will help. Note that I don't actually own Points, so some of this might be wrong, but I do have access to a Points account for searching, etc.
RCI has two distinct pools of inventory, Weeks and Points. If you are an RCI member, each of your RCI-affiliated timeshares is enrolled in either the Weeks program or the Points program. Those who have one or more weeks enrolled in the Points program also have access to the Weeks inventory, but not vice versa. So, if you own a Points-enrolled timeshare, you can exchange it for timeshares in either pool, Weeks or Points.
However, by default, any Weeks-enrolled timeshares you own can only be exchanged for Weeks inventory. If you also own a Points-enrolled timeshare, there is a way around this, called "Points for Deposit" which allows you to convert your Weeks-enrolled timeshares into a credit to your Points account. This uses a grid that converts area/season/size into a Points value. Sometimes this is a good deal. Other times it is not.
On balance, it seems that the areas in which Points are a big advantage in terms of inventory is pretty modest. Most active-sales timeshares are now mini-systems in their own right, and while developer-purchsed mini-system timeshares have access to Points, they seem to place the majority of their inventory in Weeks.