I got my first VP9 and am coming from a P2000. I bought this VP9 used, never fired, and had been sitting in a safe for a year. I put 500 rounds through it today without a flaw. However, one thing I notice that's quite different from the P2000, is that the slide is quite easy to pull back about the first 1/4 of an inch before it gets very stiff. I notice this as I'm wiping it down with a rag, I can feel the slide coming back a bit. My P2000 doesn't do this at all, it's stiff from the beginning. Now I did notice that the VP9 is very stiff to pull if the trigger is pulled and decocked. While cocked, is it normal for the VP9 slide to easily pull for the first 1/4 inch?