Trust me, I know what a press check is. Pinching the front of the slide from underneath to unlock the pistol is not a press check. It's really a pinch check because the pistol cannot be press checked. I've owned, shot, and/or carried M1911A1s for a couple of decades. At one stage in my life I was loading and shooting ~10,000 .45 ACP cartridges a year. So, yes, I know what a press check is. If press checking is that important to you (and I really don't know why it would be), carry a pistol like the 1911 (without a full length guide rod---as designed) which can be press checked (truly PRESS checked). Again this is akin to form following function. But if you need front serrations for pinch checking because you don't have the weak hand strength to pinch check without them or your hands are wet/sweaty, just use the rear serrations. You'll be no less cool. Trust me on that.
And many truly skilled shooters get by just fine without front slide serrations and have done so for a very long time. Let's be honest about a few of things here --- press checking and pinch checking have absolutely nothing to do with skilled shooting (I've been an instructor and CRSO for much too long and have seen just about all to be convinced otherwise), and about the only time front serrations are truly useful is in some applications where a pistol has a telescope mounted, and the main reason pistols are sold with front slide serrations out of the factory is because people will pay extra for that tooling simply for the look and/or wanting to look cool while using them. Think about it --- why are there front slide serrations on a Glock 42/.380 ACP?