So i have had my Sigma 9v (an older glock clone) for so time now, and I am taking out to the range tomorrow with Dad. I field stripped it and and lubbed it up and cleanend it out as the manual says, however when putting back in the recoil spring/guiderod assymbly i am confused as to where the guide rod sits on the barrel lug. Does it go up as far as possible, or in the little cut out section? Thanks! The manual says the machine section ( i assume the cut out section) but the guide rod is not straight like this and the slide doesn't easily slip back on.