I am a toe-up sock knitter. There are lots of reasons why I made the switch to toe up socks after knitting a few pairs of cuff down socks but the main reason is pretty straightforward. I, and most of the people I knit socks for, have big feet. Working from the toe-up means I can increase until I reach a stitch count that fits at a gauge that will make a comfortable, durable sock. There are plenty of options for heels to work on toe up socks: heel flaps, short rows, afterthought heels,...