Seems like this thread needs to be retired. Grippy Tire went under at the beginning of this month.
http://www.grippytire.com/
Friends of Grippy Tire
Well folks Grippy Tire as of November 1st 2011 is no longer in business. It was a great journey and even better experience. Thanks to everyone who helped along the way and to everyone who bought from us. Below are a few friends who contributed in a various ways.