If you are getting into the nuances of specific variations of various models beyond the basic conversation, you are already among those who know the differences and specifics and so "Pre B" is not even going to be part of the lexicon.
And by now, if CZ-USA doesn't understand our terms, they are being intentionally obtuse. I know Angus knows the terms (is he still at CZ?)
Transition is indeed an internet term. But it is a good one. Okay, so someone in Germany might not know what it means, but if he's discussed CZ's online, he has had many chances to be introduced to the term. It is helpful because the Czech terms are entirely too vague. There is no term at all for the original design of the Model 75, so what ever you call it, it will not be official. Short rail seems to work okay, though.
Other terms like "Turk" are not official, though "military" is. Yet, "Military" is vague, because the P-01 is military issued, just as the 1996 Turks. Of course, some "Military's" were dated 2001 while other 75's were made that year that were not "Military" models. Yet, a 1996-made CZ with "ergo" grips is a Turk. That actually does apply to the Turkish military contract pistol overrun. The 01 stamped 75's were sold as "military" models but were never involved with the Turkish contract. They aren't Turks. Semantics? Yeah, very probably. But, just because the collector/shooter comes up with a term does not invalidate it. In many cases, it is far more accurate than the original designers/sellers establish.
Ash