Center Point 3x9 AO Turret issue...

Hey guys, I bought a NPS with a CP scope on it. I like the scope, but I noticed that the elevation turret is acting up. I was adjusting it, and noticed that the tactile feedback on the turret was much less noticeable than that of the windage turret. Also, it seems to want to bind a little bit when it gets to a certain point. Has anyone experienced this from one of their scopes, and is there anything I can do to fix it? 

Let me say that Crosman told me that they would make good on the scope, however, I would just as soon want to do without sending it back if I can get by without doing so. Know what I mean? Thanks...