I will ask to JLC...
But if I have doubts, this is becasue many brands don't do this kind of things, as Rolex, for instance.
This kind of tuning is also a bad thing, about the authenticity of your watch, if you change some parts of it.
This won't be anymore an authentic Master Compressor, but a kind of mix.
In terms of colltcion, it may not be good, don't you think?
Best.
Nicolas