Dave -
Because the rigid head of the BK has such a long virtual flapping arm, the control power for the pilot is huge - make a movement in the stick, and you have an almost instant response with fuselage attitude. Not like a teetering head, where you make an input, the disc responds, and the fuselage then follows a couple of days later.
Conversely, if turbulence makes a blade move, that movement goes straight to the cabin. Responsiveness does not necessarily equal comfort.
If you want a BK, get one with CSAS and autopilot to damp some of the liveliness out.