I seriously doubt you could tell if that safety and spring were in the gun or not. The difference is only a couple of ounces.
Actually you can feel the difference. The gun is so light now, you dare not use gloves when it is cold. You just cannot feel the hard point before the trigger breaks. Summertime and it is different. I think I will have the CZ shop reinstall the firing pin block and spring. I still will not carry that gun as a CCW. My SP01 has a little bit of positive movement on the hammer before the trigger breaks. The 97 has absolutely ZERO positive engagement.
I have a couple of friends who shoot competition and they both love the trigger. Even Angus said to me it came out better than he had expected.
I shoot with a couple of LEOs and they really like the gun. . .for the range but not for carry. I think that putting the pieces back in and perhaps swapping to a stronger spring set would make me feel better about the gun in general. For a carry piece, it is really big and there are, IMV, some much better choices. The G21, G30 and G19 come to mind as well as a P229, P220.