Hi Jeff,  The Titleist Performance Institute is only open on weekdays.  Here is some info on getting fit there. 

We have a state of the art facility in Oceanside with fairways, greens, and our wedge and bunker complex where Bob Vokey does his work with players.  We use a Trackman launch monitor to gap and check numbers so that you can be assured that you have the correct club selection and our fitters are very experienced.  The Test facility has all the heads that we offer and most of the shafts in our custom booklet::

http://media.titleist.com/images/titleist/pdfs/US/2015/Custom_Club_Options.pdf

When you schedule a fitting, we ask that you bring your current clubs with you and dress as if you were going to play a round of golf.  Shoes, gloves, hat, sunscreen are also helpful as you will be outside.  The fitter will get baseline numbers on your current set up and discuss what you like and what your goal is for new clubs so that both you and he are on the same track for improvement. 

We offer three separate fittings: Driver/Fairway, Hybrid/Irons and a Wedge fit that can be done individually or all together. Most players that come to our facilities are used to hitting balls and do all three together, but it depends on the player. Each fitting takes about an hour (or 3 hrs for the bag, minus putter). When the fitting is complete, we will email all the details of the fit to you and your pro (if you wish) and you can order your clubs at whatever shop that you choose. The fitting fee is a fitting fee only and does not go toward the purchase of clubs. Oceanside fits Monday through Friday at 9am or 1pm. The cost is $250 per individual fitting or $600 for all three and you can reserve your fitting appointment by calling 1-888-262-7202 and talking with Andy. There are no monies taken at the Tour Facility, so when the reservation is made, we will take a credit card and it gets invoiced about 10 days prior to your appointment. The fee is non refundable, but we can reschedule should there be an emergency.