I like to finish my socks with the 3-needle bind-off, but always had difficulty turning the sock inside out while still on the needles. Then I learned this nifty tip: Instead of trying to shove the toe and needles into the body of the sock, pull the cuff end through the toe hole and voila! It works! And saves a lot of struggling. I use the magic loop method but this should also help when using double-points.