Sasless - I don't think there is a difference - I was thinking about ground taxiing a 365 (castoring nosewheel) and how it rolls out of the turn when you yaw it. The same used to happen in the Wessex/Sea King (castoring tailwheel) - one Wessex student of mine many years ago got us up on two wheels (left main and tail) being a little spirited with his first ground taxiing!