I've never done flax before. I'm practicing to spin bowstrings for the renaissance festival this season, and the monthly challenge this month is "renaissance".
Hackling flax means you literally lose half the fiber. Seriously. Looks like a horse's tail though. :)
I'm currently experimenting with wet spinning on a spindle as well... While I'd like to post more now, it's kind of boring until I get working on it... :)