Hi,
I just purchased 910F (17degree) from ebay store. Overall it looks good without any blemishes or bluish tint on weight hole. Though the etched serial number (only 5-digit: 71XSL) seems quite rough compared to my 910D2, but it matches to the number on the shaft, under the surfeit adapter.
One minor difference that I noticed is that the authenticity label on the shaft changes the color between amber and green as other authentic Titleist woods do, but this one has "JGGA" in addition to "USGMC". Other woods have only "USGMC".
I googled JGGA and it turns out as Japanese version of USGMC. So is this authentic made for Japan market?
Thanks.

