I first got used to DA trigger pulls on semiautos with my PPK/S, which has (getting better with use) a gritty, (feels like) 50lb pull.

After a few thousand rounds, it smoothed out but is still heavy as hell. :-/ Then I got my Kahr K-40 and thought I'd died and gone to trigger pull heaven.

Then came the R9s, which made the Kahr's trigger seem heavy by comparison.

The only gun I ever owned with a DA trigger almost as good as the R9s was an old S&W Bodyguard which had a trigger job done on it. Shooting the R9s is as easy (for me) as shooting a 1911 single action. Sweet!