In regards to replacing the bezel on a Rolex 16710 from a Coke insert to a Pepsi insert, what are the risks or differences for replacing the insert as compared to a gen? I understand with the GEN Subs and GMT-Masters it is a matter of prying off the bottle cap bezel and it simply pops off, I understand there is little quality control with rep timepieces so, has anyone ran into any differences with replacing their bezel inserts compared to a gen, or is the process pretty much standard to the design? Thanks.