Swampwolf,
I have not shot a 92X Centurion, but own several of the 92FS Centurions and VERTEC models. They are the same overall dimensions as the 92X Centurion and the Centurion is no easier to conceal than the full size 92FS or VERTEC pistol. I have several of the 92D Compact pistols (same dimensions as the 92X Compact) and then they are easier to conceal and more comfortable to carry due to the smaller size and lighter weight. I have found my Compacts just as reliable and accurate as the full size models.
If you go for the 92X Compact, you can get it WITH or WITHOUT a light rail, they make two different versions. Without a rail, means you can use any standard 92 Compact holster. With a light rail, it makes a better car or home gun. You can add a light, laser or combination unit.
The most important features in carrying a semi-auto concealed are the grip length and overall thickness of the gun. All high capacity pistols are going to be thicker. They have to be to carry the thicker magazine. Be that as it may, I have gone to work wearing my BERETTA 92D Compact, SIG 229 and STOEGER 8000 pistols without any problem. I am wearing a GLOCK 19 right now with the same set up.
I used an oversized button down shirt over a t-shirt or in some cases, over my uniform shirt. Even the full size grip of my BERETTA M9A3 (same grip size as the 92X Centurion and the STOEGER 8000 ( a Turkish made clone of the BERETTA 8000 Cougar pistols) did not cause problems, although the M9A3 is a heavy beast when fully loaded.
I have owned a CZ-75 and did not find any advantage over the BERETTA. In fact, I found the base CZ-75 model to be UNSAFE for unskilled or new shooters, in my opinion. The newer CZ models, like the CZ-75BD and CZ-75 P01 feature a decocking safety, while the old A and B models had the non-decocking safety, similar to the 1911 pistols, which is a liability and accident waiting to happen. I am sure that many CZ and 1911 fans will disagree. I don't care! I have seen enough accidental discharges to want every safety feature I can get and the decocking safety on the BERETTA and P01 is one of the most useful features.
I have found that the BERETTA'S as a rule, have a good trigger or very good trigger depending on whether you go an upscale model with the lighter D model spring installed. My M9A3 and D models have a smoother, lighter trigger that the usual 92FS. I recently compared a 92X Compact and M9A3 side by side and you could tell the difference in the triggers with the M9A3 being smoother and lighter.
You can have an 8 pound trigger spring as used in the M9A3 model, installed by a gunsmith. It is not a big deal and worth the effort.
Jim