To try 100% inheritance for yourself go to your "my documents/my games/tribes ascend/tribesgame/config" folder. Locate "Tribesinput.ini" and open it in notepad.
Add the following without quotes at the bottom of the [Engine.PlayerInput] section. "Bindings=(Name="F2",Command="SET TrProjectile m_fProjInheritVelocityPct 1.0 | SET TrProjectile m_fProjInheritVelocityPctZ 1.0 | SET TrProjectile m_fMaxProjInheritPct 1.0")"
This only works on offline training maps, so open one up and press "f2" to activate. You will have to restart the game for the changes to go away.