[QUOTE=drmweaver2;12839226]You're the one who defined the situation as "narrow winding roads". That implies a lack of sufficient width for a car to pass within the confines of the lane while providing "3 feet" of safety for the bike. QUOTE]
No, that's not the case at all. The problem is visibility. I can't see far enough ahead on country back roads to pass safely due to curves and hills. I certainly always respect three feet of safety, in fact I give bikes a much wider margin than that.