lock cylinder change

I picked up a 1250 GS which came with Vario panniers. I want to change my BMW aluminum bags from my old 1200 GS to the new 1250 GS and re-key them to match the new bike. I have pulled a lock core and checked the tumblers against the new key, and I am going to need a bunch of #1 tumblers; 3 on...

I'm thinking of buying a used top case for my 2015 RT and I'd have to recode the lock cylinder. I've done that before on the old style case but don't know how to get the cylinder out of the new style case. Has anyone done it?