I am working on my first sock and doing Silver's sock class, using the 4 dpns. Which by the way I love her tutorial, it is great. Just a quick question, I am working on the heel flap. It says to slip purlwise, then knit, slip, knit, .... When you slip purlwise, do you bring your yarn to the front? I realize it doesn't really matter on the first slip, but on the thrid one, does it matter where I hold my yarn? Front or back? I knit English, if it matters.