S-300C
We Schweizer (Sikorsky) 300 instructors at the lower end of the pile will know of the problem especially applicable to the type, which in a developed state is quite alarming for the new pilot.
In my experience, the worst case situation occurs in 'air-taxying' manoeuvres with a stiff 2 o clock breeze. The rapidly alternating yaw angles frequently reach 20 degrees either side of the normal axis which, accompanied by the lateral rolling and wrong corrective handling, risks loss of control. Newer pilots become quite frustrated in their attempts to control the condition and many times, I've seen the late application and out of sequence corrective yaw pedal worsen the situation. I don't think I've actually discussed the problem with another instructor and would like to hear their experiences.
In post lesson briefs, I use Shawn Coyle's dynamics to explain this odd quirk of handling but as noted the deliberate 'out of balance' sideslip using yaw pedal is always effective.
Safe flying to all,
Dennis K