Oh dear, the "quick" pre flight strikes again!? As a helicopter is basically a ball of force vectors pulling in opposite directions, pre flights are pretty important....Practiced TRF's in the 206 the other day, amazing the effect rolling off the throttle has. Of course my biggest fear of a tail rotor/gearbox letting go, is if it is bad enough to cause the T/R gearbox to depart...that happens and the CofG shift totally ruins your day.