Fast Rask Kastaplast
The retooled Rask disc from Kastaplast was PDGA Approved on 1-12-2014.
“This new version of Rask has been edited to approve the grip. Rask is the fastest driver to date, without the widest rim. A predictable distance driver for power throwers. This new version of Rask was released on January 10th 2014.” - by Kastaplast