Well, I ran the Timney 3lb. trigger in my suppressed 9mm SBR. I run a ramped bolt, and while I was shooting it, I never had a issues and it performed perfectly.
However, my nephew on the other hand must be a natural at bump firing, because he made it double and triple a couple of times. After it would double and triple on him, it would fail to reset the trigger. He is a very novice shooter, this is my fault, as I dont get him out to the range as much as I should and I am the only gun guy in the family. I will make up for that this summer, as his interest in firearms is good.
I think the Timney performed very well, and attribute the doubles and triples to user error. (Although error maybe the wrong term, as my nephew is in dire need of more trigger time, and work other basic fundamentals.
I also checked that the disconnect was working, by firing a round and holding the trigger to the rear and then slowly releasing it. Again, no issues at all.
I didnt get an opportunity to run it with a non-ramped bolt, as my friend that runs the range didnt have his 9mm SBR there.