Golf clubs and golf club heads with adjustable center of gravity and moment of inertia characteristics

A golf club head, comprising:

• a club head body member having a ball-striking face, a rear surface behind the ball-striking face and a cavity defined therein, a sole, an upper end, a toe end and a heel end, wherein the heel end is adjacent to a shaft-connecting member;
• at least one weight member removably engaged at least partially within the cavity defined in the rear surface, wherein the at least one weight member, when engaged, shifts the center of gravity of the golf club head;
• wherein the at least one weight member comprises a weighting assembly comprising a first underlay weight member, a second underlay weight member, and an overlay weight member;
• wherein the first underlay weight member includes a toe end with a recessed area and a heel end with a recessed area, wherein the second underlay weight member includes a toe end with a recessed area and a heel end with a recessed area, wherein the respective toe ends confront one another, wherein the respective recessed areas of the toe ends meet to cooperatively form a first interface area;
• and
• wherein the respective heel ends confront one another, wherein the respective recessed areas of the heel ends meet to cooperatively form a second interface area.

A golf club head, comprising:

• a club head body member having a ball-striking face, a rear surface behind the ball-striking face and a cavity defined therein, a sole, an upper end, a toe end and a heel end, wherein the heel end is adjacent to a shaft-connecting member;
• and
• at least one weight member removably engaged at least partially within the cavity defined in the rear surface, wherein the at least one weight member, when engaged, shifts the center of gravity of the golf club head, wherein the at least one weight member comprises a weighting assembly comprising a first underlay weight member, a second underlay weight member, and an overlay weight member,
• wherein the first underlay weight ember includes a toe end with a recessed area and a heel end with a recessed area,
• wherein the second underlay weight member includes a toe end with a recessed area and a heel end with a recessed area,
• wherein the first underlay weight member has a central surface extending between the recessed area of the toe end and the recessed area of the heel end and the central surface defines an upper edge,
• wherein the second underlay weight member has a central surface extending between the recessed area of the toe end and the recessed area of the heel end and the central surface defines a lower edge, and
• wherein a pair of pockets is defined at the interface between the overlay member and the central surfaces of the first and second underlay weight members.

A golf club head, comprising:

• a club head body member having a ball-striking face, a rear surface behind the ball-striking face and a cavity defined therein, a sole, an upper end, a toe end and a heel end, wherein the heel end is adjacent to a shaft-connecting member;
• and
• at least one weight member removably engaged at least partially within the cavity defined in the rear surface, wherein the at least one weight member, when engaged, shifts the center of gravity of the golf club head;
• wherein the at least one weight member comprises a weighting assembly comprising a first underlay weight member, a second underlay weight member, and an overlay weight member;
• wherein the first underlay weight member, the second underlay weight member, and the overlay weight member all form portions of a rear exterior profile of the golf club head;
• and
• wherein the first underlay weight member includes a toe end with a recessed area and a heel end with a recessed area, wherein the second underlay weight member includes a toe end with a recessed area and a heel end with a recessed area, wherein the respective toe ends of the first and second underlay weight members are configured to confront one another, wherein the respective recessed areas of the toe ends are configured to meet to cooperatively form a first interface area.

A golf club head, comprising:

• a club head body member having a ball-striking face, a rear surface behind the ball-striking face and a cavity defined therein, a sole, an upper end, a toe end and a heel end, wherein the heel end is adjacent to a shaft-connecting member;
• and
• at least one weight member removably engaged at least partially within the cavity defined in the rear surface, wherein the at least one weight member, when engaged, shifts the center of gravity of the golf club head;
• wherein the at least one weight member comprises a weighting assembly comprising a first underlay weight member, a second underlay weight member, and an overlay weight member;
• wherein the first underlay weight member, the second underlay weight member, and the overlay weight member all form portions of a rear exterior profile of the golf club head;
• wherein the first underlay weight member includes a toe end with a recessed area and a heel end with a recessed area,
• wherein the second underlay weight member includes a toe end with a recessed area and a heel end with a recessed area
• wherein the first underlay weight member has a central surface extending between the recessed area of the toe end and the recessed area of the heel end and the central surface defines an upper edge
• wherein the second underlay weight member has a central surface extending between the recessed area of the toe end and the recessed area of the heel end and the central surface defines a lower edge
• wherein a pair of pockets is defined at the interface between the overlay member and the central surfaces of the first and second underlay weight members.