Search Titleist Thursdays. i think that's what they call them.

Hi Karl,

they are as I had one Friday held at my club. check out there site or there authorised shops.

I attended one last month that was carried out by Tim Baker the local Titleist Specialist, however as it was hosted by the local driving range and not Titleist themselves.
I didn't get the email from Tim with the club specs of my fitting as before. These were sent to the Driving range Professional so I could only purchase from them.
I did follow up with them and they were as competitive with their prices, but if I'd known that was going to be the case I probably wouldn't have bothered.
Maybe a call or email to Titleist themselves might give you some guidance?