My 2 cents if you aren't willing to want to spend more $$$ for a "custom" shaft option is look at the Diamanas. I have the blue board in regular flex in my fairways ans hybrids and they are fine (70 gram shaft weight). Driver swing for me runs around 95-98.

Having said that, I also had the blue board (60 gram), in my driver and that has been replaced. It played way soft to flex...and I don't know...maybe I got an off shaft...but the driver shaft was terrible, kept hitting balloon shots and high right misses. I was going to trade to a stiff flex but the PGA superstore near me had me try a Fujikura Fuel 50 in stiff flex and it was a better shaft numbers wise (and feel wise) than the blue in stiff.

That said...in the fairways and my hybrids the blue board in regular flex is great.

The OZIK X4 White Tie has a stiffness profile designed for efficient energy transfer in a stable structure that offers control in a high-launch, low-spin shaft. It is the highest launching and lowest spinning version of any MATRIX. Shaft, and it truly is a great shaft. A stock Titleist shaft that would match up to the characteristics are the Diaman Ltd Blue 70 as well as the new Speeder Pro Ts 84. These shafts match up ok to the characteristics of the OZIK, but in order to truly get close to the characteristics of the OZIK, you would have to dip into the custom/ exotic shaft category. A few custom shafts that I feel are similar to the OZIK are the Tour AD DJ 6, the M Speeder 661, the Tour Blue 75 and the Proforce V2 76. Based on my personal experience, I love the OZIK White Tie and if possible would use those. If you need any more advice, let me know and I would be glad to help.
Jake

Remove all the guess work....work with a qualified Titleist fitter to find the correct shaft. Have a discussion about what you are looking for and then hit some drives with your current driver so the fitter can see your numbers using it. From that point, he/she can start working towards a recommendation that gives you the best head/shaft combo for your swing.