Abstract: A golf club shaft wherein the flexibility of the club over a short segment at the butt or grip end is increased in a controlled manner. A flexible hollow shaft insert of approximately 6.5 to 10 inches in total length having an insert stub portion of approximately 1.5 to 3 inches in length is fitted within the shaft, and an extension member of approximately 5 to 7 inches in length extends from the insert stub portion, the outer diameter of the extension member being greater than the outer diameter of the insert stub member, such that a shoulder is defined at the juncture. The shoulder is abutted against the butt end of the golf shaft, thereby creating a flex point whereby the extension portion flexes in a hinge-like angular manner relative to the golf club shaft. The extension portion is constructed to be substantially stiff or rigid, such that it remains substantially linear when bent relative to the golf shaft.

Abstract: A golf club shaft wherein the flexibility of the club over a short segment at the butt or grip end is increased in a controlled manner. A flexible tubular shaft insert of approximately 7 to 10 inches in total length having a tapered portion of approximately 2 to 3 inches in length and of increased diameter, the outer diameter of the tapered portion being sized and configured so as to mate with the inner diameter of the actual golf club shaft, is inserted into the shaft. A flexible sleeve is disposed about the exposed extension portion of the tubular shaft insert, the outer diameter of the flexible sleeve approximating the outer diameter of the golf club shaft, such that a standard grip may be applied over the butt end of the shaft and the extended portion of the shaft insert.

Abstract: A golf club shaft wherein the flexibility of the club over a short segment at the butt or grip end is increased in a controlled manner. A flexible tubular shaft insert of approximately 7 to 10 inches in total length having a tapered portion of approximately 2 to 3 inches in length and of increased diameter, the outer diameter of the tapered portion being sized and configured so as to mate with the inner diameter of the actual golf club shaft, is inserted into the shaft. A flexible sleeve is disposed about the exposed extension portion of the tubular shaft insert, the outer diameter of the flexible sleeve approximating the outer diameter of the golf club shaft, such that a standard grip may be applied over the butt end of the shaft and the extended portion of the shaft insert.

Abstract: A golf putter having visual indicia to correct for misalignment caused by eye predominance, the visual indicia being generally D-shaped with the back line linear portion parallel to the clubface and the arc portion facing forward toward the clubface, with a linear alignment line disposed within the arc and back line such that the alignment line is angled a slight amount away from perpendicular to the back line, such that the golfer falsely perceives the alignment line to be perpendicular to the clubface.