So, I will explain. As many here stated and just like Mr. Milan knows, CZs are all over the map in terms of quality of trigger.
Why do SIGS have after market parts? Cuz people love short reset - or a shorter reach trigger, or a flatter trigger, etc. etc. Not to make them smooth and shootable. Sure, I just bought a P6 with a 89LB trigger pull. And yes, I just bought a 20 LB spring. But I don't have to polish anything - and the heavy pull is smooth as silk compared to CZ OTB. Same as Beretta - people use D springs to lighten the pull, but the stock pull is smooth. Same with HK - they may be 12LB, but every one I handle is smooth. 90% of all stock CZs have a creepy SA - and not just from the camming - the sear/hammer hook interface is just plain sloppy - that is WHY people who want it right buy a CGW hammer. No one gets a SIG and needs a new $80 hammer - because they break clean. The design and execution are just better - period.
Are CZs good reliable and very accurate guns? Yes. Are they go to war good - yes. There triggers are just not on par with other good, reliable, accurate guns.