Mine worked flawlessly for about 1500 rounds, then I started getting FTE.
I suggest ordering the VQ hammer and extractor from rimfire or hawktech now.
The trigger helps enormously, and you may as well have the extractor handy if your gun starts acting up (from what I've heard, this has fixed most people's problems, including mine).
Additionally, take the receiver out and loosen the guide rod set screws.