While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
The CZ competition hammer is supposed to improve the reset as well as the trigger pull. They are available from Guns 'N' Things in Canada or czcustom.com from the US. London Arms is the Canadian CZ importer and might also sell them.
I think this might be what you're looking for. Quite a detailed and informative analysis of the 75B SA/DA trigger travel and reset properties, and how to adjust them.
Have a gunsmith remove the firing pin block, lever, add spacer, install a competition hammer and #13 mainspring. The lighter mainspring will greatly deduce the DA trigger pull.