Was planning on doing thatGot another die set? You can take the pin out of it while you wait for RCBS to send you a package.
I ran into that recently and it turns out there are basically 2 different types-those with flat round heads and those that do not. As I look thru all the dies I have and my RCBS decapper I see they all have the heads and are interchangeable. Likely any store in your area that sells dies should stock them. And yes, RCBS is generous with them.