By the way, my P 10S is also the Czech made version. I preferred it over the US made models. I personally like the markings on the slide and I am not an optics person, so it just made sense for me.
Also, just to add a bit more information. The US models are being produced in Kansas City, Kansas. This manufacturing plant opened up a couple of years back. So, that is why there will continue to be US made models and I doubt the Czech models will be produced anymore. It makes sense for all of the new P 10S guns to be optics ready since you can either leave the plate on, or add optics.