I only have a small number as it was all I could get from the USA. Tozer has taken some from my stash as well.
The blurb is here - http://www.nventix.com/media_downloa...d_Shaft_PR.pdf There is a lot of PR waffle, but there is some good info too.
$12 shipping to most places, $18 to the west coastal friends. It would be a good idea to organise group shipping to the house of Fit to save shipping... Same day to sydney CBD.
I only just received them - will provide more info when i get them installed in my new Hybrids.
Enjoy