I received my new Para PX745 yesterday, I played with the slide and noticed that the slide is a little bit tight and requires some oil to loosen up the tightness. When I tried to field strip it, I noticed that the slide is not that easy to remove. I don't want to force it, and decided to bring my concerns here. May be someone has the same issue with this pistol. I need to know if there's any way to remove the slide. A video will be helpful. Thanks.