I'm having trouble getting the slide back on after field strip and cleaning. It seems to hang up on the top of the ejector,sear release and firing pin safety levers, while I'm pressing them down as the manual states. I have to use pretty good force to get the slide over the above mentioned parts in the reassemble process. Is there something I'm doing wrong? I've followed the field strip process in the manual. Has anyone here with a #1006 had the same problem.