My experience with RSC and buying a jubilee!
I recently purchased a 2004 16710 Coke bezel on an oyster bracelet, but I really wanted a Jubilee. A very helpful Reddit let me know that since I was in London anyway if I visited the Rolex service center, they would sell me one and possibly another insert as well!
I went to the service center in St. James Square and they were very lovely to work with. They would not sell me another colored bezel insert as apparently Rolex has changed the rules on that this year. However, they were more than happy to sell me their last Jubilee bracelet for my reference.
The gmt master two really shines on jubilee! And I still have my oyster bracelet in case I get bored.