Par4QC Assassins. They were very nice shafts, although somewhat stiff
Likely not Assassins is my guess.
They were not that stiff, imo.
I played the Vs339 and got an Assassin for a friend and it was night and day compared side by side.
Torque value was 3.5 I think, compared to under 3 for the vs339, if that means anything.