Abstract: Systems and methods of predicting a performance variable difference during manufacturing are disclosed herein. In accordance with the presently disclosed technology, a method of predicting a performance variable difference during manufacturing may include partially forming a golf club head of a first material, measuring a performance variable of the partially formed golf club head, removing a portion of the partially formed golf club head creating a void, completing a formation of the golf club head by at least filling the void with a second material, and re-measuring the performance variable of the completed golf club head.

Abstract: A golf club head including a slot is disclosed herein. In accordance with the presently disclosed technology, the golf club head may include a striking face, a crown, a sole, and a slot. The striking face may include a lower striking face portion including a sole return, which includes a slot adjacent the leading edge. The sole may include a rear sole portion extending to the sole return.

Abstract: A multi-material golf club head having an improved performance is disclosed. More specifically, the present invention relates to a multi-material golf club head having a metallic frontal portion and a lightweight aft portion with an addition of an internal ribbon support member. The lightweight aft portion could be formed of a multi-layered sandwich material with at least one layer having low damping properties. The present invention may also further be comprised of a weighting mechanism that is accessible via an opening in the lightweight after portion but connects directly to the metallic frontal portion to mitigate any of the structural integrity issues associated with installing weights in a lightweight portion of a golf club head.

Abstract: Systems and methods of predicting a performance variable difference during manufacturing are disclosed herein. In accordance with the presently disclosed technology, a method of predicting a performance variable difference during manufacturing may include partially forming a golf club head of a first material, measuring a performance variable of the partially formed golf club head, removing a portion of the partially formed golf club head creating a void, completing a formation of the golf club head by at least filling the void with a second material, and re-measuring the performance variable of the completed golf club head.