Hi Jason -
You would be able to place a special order for the VS Proto 95 X in the 910 hybrid. Just make sure to let your Authorized Titleist dealer know that your request is slightly "off-menu" but Titleist did inform you that the shaft is available…
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The Titleist Version is slightly heavier with a little more torque. You can compare the specs here:
http://www.fittingworks.com/TechnologyProcess/ShaftandGripInformation/ShaftDescriptions.aspx
I suspect the Titleist version is much cheaper an can…