There is no "Left" or "Right" way to wrap thread. As long as you do it the same all the time, it does not matter. I'm right-handed but for some reason a the time I first started learning to wrap thread on a hook when I was 9 or 10, I did it the opposite direction than what apparently I was supposed to. Being self taught, it was many years before someone smart saw me doing it and told me it was WRONG. I guess all the fish I had caught up to that point were wrong too. I haven't ever changed because it was simply muscle memory at that point. On the rare occasions when I tie with other people, someone invariably imparts their wisdom upon us, saying I am doing it backwards. Sure. Ok. Move along.