I demand proof! (it was an AD, not ND)What I have done is... put polishing compound on all of the contact points in the trigger linkage system and go shoot. Clean and reapply and shoot again.. I did this for 3 100 round range trips and now it is very smooth. NOTE this does not change the pull weight just the feel. However BC it is so smooth it actually feels lighter.
NOTE do not fool with the sear spring as this can and will result in an ND!!!
I received my C9 back on Friday 9/11/09 and the trigger pull is noticably lighter. I am guessing that it is around 6lbs. now compared to about 10lbs. before I sent it in.I have the problem of too heavy trigger pull and creep. Called the factory today and the said to sent it in.
I haven't messed with this on any HP weapons, but on the Jennings J22 I used to have I chopped down the sear spring and couldn't make it AD for anything. I got a much lighter trigger pull from adjusting it, and as far as I could tell from drop testing, beating with a rubber mallet, etc. you'd have to do something that would basically destroy the gun anyway to get it to AD. It could be different with HP weapons, but I'd imagine that as long as you leave enough tension for the sear to work properly you wouldn't have anything to worry about. I'm planning to do the same sear spring modification to my 995.NOTE do not fool with the sear spring as this can and will result in an ND!!!