CZTops,
I sure hope the .40 and the Kadet kit work together well. I just ordered one today from J&G. Since no one seemed to have the Kadet in nickel-satin, I ordered the black polycoat. That ought to add an interesting look to the gun!
As far as compatability, CZ-USA reports that their Kadet will fit all calibers of the 75B, including my .40. I'm waiting to see if any issues come up, like minor fitting, needing a longer slide stop, of if the unit I purchased comes with the chisel-point firing pin already installed.
I intend to use .22lr CCI Gold Dot JHP in the Kadet, which is what totally eliminated stovepipes from my Browning Buck Mark.
Wish me luck and keep sending suggestions.
ED