Need your help again with this hooded sweatshirt. I am knitting the hood and the pattern reads continue even until hood measures 7 1/2 ins. ending with RS facing for next row. Place marker at each end of last row. Cast off 4 sts. beg. every row until 3 sts. remain. Cast of rem. sts. My problem is, if I place a marker at each end of the last row and then start binding off what is the point of the markers? I have marker, bind off, knit, marker. Then next row marker bind off knit and marker and so on and so on. This may be very simple but I just dont get it. If this makes sense to anyone I could sure use your help.