uh , throw what you would throw for an air shot. if you r throwing into the wind use a more overstable disc, with the wind use a more understable disc. for a long roller use a driver, for a shorter roller use a midrange . practice, practice and hope for favorable rolling conditions, good cut grass , dry conditions and a relatively smooth rolling surface with a minimum of tree roots, sticks, leaves, etc
I found that the newer discs tend to buckle when they hit the ground. I have a couple of old eclipses from the 1990's that are very rigid & are naturally understable. They no longer fly well but they roll forever.