Patent ID: 8317635

Claim:
A method of customizing a golf club head comprising the steps of: (i) providing the golf club head, wherein the golf club head comprises a hitting face that is spaced from a lower flange to define a channel; (ii) providing a plurality of mass control inserts; (iii) testing the golf club head with each of at least two of the plurality of mass control inserts secured temporarily to the golf club head by at least partially inserting the mass control insert into the channel; and (iv) securing a preferred one of the plurality of mass control inserts to the golf club head; wherein at least one of the plurality of mass control inserts includes a first insert and a second insert, wherein the second insert is disposed within the first insert and is sandwiched between the first insert and the hitting face, and wherein the second insert is constructed from a material having a higher density than the material of the first insert.