Has anyone else had an issue with a very tight takedown lever in their M&P22? I bought it new last month and when I first tried to field strip it for a pre-fire cleaning and lube, it took forever to pull out the lever the required 1/2" to release the slide. It pulls out by hand about 1/16" then stops, and I finally had to resort to using a flat bladed screwdriver wedged between the lever and the frame to pry the lever the rest of the way out. I'm not happy with using this procedure because it's only a matter of time before there's an "oops" and the frame will have a permanent scar! I realize with center fire handguns things like this tend to work themselves out with use, but I don't know if this also applies to rimfire. I've run approx 400 rds through it since the initial cleaning, yet today when I tried to field strip it I ran into the same problem. Any suggestions?