The Proline Breaker produced by DGA is now PDGA Approved as of 2-22-2013.
"The Breaker is an overstable putt and approach disc. Also great for midrange shots, the Breaker will predictably “break” for the basket and leave you with a minimal putt. The disc’s low profile flat top will make it a natural fit in your hand and earn your trust within the first few throws. Great in the wind, this disc will be your go-to disc for many conditions and situations. DGA will have a limited number of prerelease ProLine Breakers available during the Memorial Championships Flymart." - DGA