Depends on who "values" what!!
I find the blue CF grips the most desireable,that's my opinion..These are on the "early' made pups and I was told by Karl R that 300 sets were made..
Your gun is an R prefix serial # gun I assume..
I like mine that I have,but I have for sale one of the true R9s models on this forum as we speak..
I like the early guns-not any experience with the newer ones though..
Not much help,I am sorry..
Brenden