I am having the exact opposite problem with mine. I didnt get the krebs but the standard safety lever. I got it all shaved down for my trigger and it installs fine and i get it into position just fine. The problem i have is just how hard it is to opperate. Putting it on safe is much easier than taking it off safe. I have been using plyers to try to work it in hoping it would ease up with some use. Suggestions? I did notice that the dimple at the front of the lever is in a different location than the last one, would filing this down some help? <----- noob