I have also been fortunate enough to meet Justin, once at my local Magic Shop. Then again at Magifest (like a convention of sorts). Hell of a nice guy.
I know my brother wears his contacts when he performs thread. 2 weekends ago he tried to perform it in front of a large crowd at a horror movie convention. And all hell broke loose, he couldn't get a hold of the thread in his eye and in the process of looking for it his contact fell out.
He was...
I don't know if I'd consider flourishing as a type of juggling, its is card manipulation. And after all juggling is also manipulation, of balls.
I'm not sure but I do a lil of both along with a few cigarette tricks that could be considered juggling.