bart,

just head out to your local authorized titleist dealer in your area and have them set up a special order on the shaft.  good luck!

-fred

Bart,

If your son has not already been fit for either of those shafts, you should set-up a fitting session with a certified Titleist fitter to ensure those shafts work for him.  If he has already been fit for the shafts, then you can go to an authorized Titleist retailer and order the shaft with the adapters installed.  They'll need to know what length shaft your son uses (45, 44.5, 44, etc... [this is part of what comes out of the fitting session]) on his driver and what grip he wants on the shaft.