Hi Tim,
nil wind forward launches are tough. Definitely practice with 3mph or so, it's so much easier on the legs until you get the hang of it. You can see from Clive's video above that he took two small steps backwards because he was pulling up into a head wind.
Dan taught us to run at it rather than just one step back too. One thing that you might want try if your wing is always coming up left side first is to start slightly left of centre to encourage the right side up a bit. Not too much though as it's a bit of a fudge.
I attempted a nil wind forward in Cornwall last week and had to give up after 6 attempts as my site was slightly up hill with a dip in the middle. But then again, I'm not very good.... Keep at it mate.
Cheers, John (from Binley Woods)