Hey Guys, I have used the search function to nauseum and tried everything I can think of. Please help. Problem: I two stainless CCF Raceframes with a two different G34 slides on them. About once in 50 rounds the guns decide to give me a failure to eject/extract. As everybody knows that does not help win a match. They have pretty much always done this but I did have it band-aided for a while (old style locking block and .40 bearing). Gun runs perfect on the plastic frames. When the problem occurs the spent case is left in the chamber with a new round pushing up against it. Gun Setup: Stainless CCF Raceframe with the new style CCF locking block G34 slide with stock G34 barrel 13-17 lb recoil spring-I usually run 13lb ISMI, but have tested others looking for the cure. Stock plastic guide rod, modified to be uncaptured. The gun definately goes to lockup. LCI extractor for 9mm, have tried many different 9mm and .40's Spring loaded bearing from .40 (forget about it extracting with a 9mm bearing) New extractor rods and springs Factory and reloads. Reloads are 100% reliable with the plastic frames. 3.8 gr tightgroup with a 124 gr MG HP set at 1.115. Brass is range pickup, mostly once fired. Magazines: Have many running from brand new to old as dirt (10,000 or so rounds), does'nt change a thing. Feed lips measure .335-.338 with the brand new magazines on the .338 side. Gun clean or dirty really does'nt matter still FTE's. My hypothesis: 1. The magazines have alot of wiggle when inserted into the gun. Could this wiggle and movement be causing the problem? 2. Could the locking block be a little high? I noticed a small amount of peening on the leading edge of the locking block. I removed a very small amount of material (basically polish) from the bridge to smooth the area on one of the frames to no effect. Thanks in advance. I with your help I can get this thing running.