sorry, I used to check the cz100 forum pretty regularly, but I lost the link. I think that the website has hidden the 100 forum; it's sort of the red headed cz step child.
Anyhow, the trigger pull is often long and gritty. Mine was.
I have worked the internals with sandpaper and glued a pencil eraser behind the trigger to stop the over travel. It's now light and smooth with a consistent stack and break on every pull. It's not difficult and there are numerous threads to detail how it's done. Once that was finished, it was a very accurate pistol. CZ should have worked a bit longer on the cz100.
It was my first DAO pistol. I have since gotten my hands around a bunch of other pistols, none of which were what you have. I do have a P99 AS in .40. the DA pull on that is heavier than mine, but since it falls into SA after the first shot, it resets quicker than the cz100. The long reset on the CZ is the difficult part.
Sorry for the wait.
ac