I posted in the 92dxr thread, but wanted to post here for visibility.
I had issues that I attributed to short stroking that actually seem to be the trigger bar isn't lifting to catch the hammer. I replaced the trigger bar spring, albeit not with a brand new one, to no avail. With a forceful press/release it will pop up and catch. Also if it isn't catching I can press the hammer toward the trigger bar and it seems to let it pop up and catch.
Tried heavier hammer springs also, to see if that mattered at all. It didn't.
Likely culprit? and aside from a brand new trigger bar spring, what would likely need replaced? D hammer? Trigger bar?