Factors that increase the right turn of a RHBH disc:
1.Higher spin rate
3.Nose down. Below 9 degrees Angle of Attack (AoA) contributes to a right turn by precession
4. Being beat in
6. Lighter weight of the same mold, same disc
7. Lower density plastic
8. Higher dome
9. Air temperature.
The sub-pages below will examine each of these factors in search of common traits.