eak, aaag, arrgg, I admit, you have some nice technique in you... but the amount of UNNECESSARY card handling is just extremely painful to watch . Do you really really need to riffle, spread, spin, fan, the cards that much? Honestly, I would have noticed your refined technique a LOT more if that is all you showed, but you completely flooded it and hid it with just visual noise.
I know it is hard to not flood the screen with visual noise and unnecessary flourishes, because we handle the deck and practice so much, but 100% honesty, the presentation/video would have been 10 times better if you just did the trick... MAYBE, just maybe 1 pirouette at the end as you turn it over back face down onto the deck. A little flare to go out with, and that is all.
I do not mean to sound harsh, and if you disagree that is ok, but before you disagree too quickly, please watch the video and read the post that Liquidsn (aka Tony Chang) makes on his magic blog about visual noise.
http://www.doublefacers.com/2008/11/lesson-1-visual-noise/