Lock system with enhanced keyway variability

A lock system comprising:

• a lock operating key for operating a lock, the key having a transverse blade profile in a transverse plane oriented substantially perpendicular to the longitudinal axis of the blade, the key comprising:
• a bow;
• a blade extending from the bow along a longitudinal axis of the blade, the blade including a blade wall with an arcuate main wall portion and a pair of side wall portions, the main wall portion being arcuate in shape in the transverse blade profile, each of the side wall portions extending inward from one of the opposite sides of the main wall portion and generally toward an other one of the opposite sides of the main wall portion;
• bitting formed on the blade, the bitting being positioned on at least one of the side wall portions of the blade wall;
• a lock plug defining a keyway having a transverse keyway profile configured to receive the blade of the key, at least a portion of the transverse keyway profile having an arcuate shape to receive the arcuate main wall portion of the blade wall of the key.