Congratulations, Alex, on improving your game.  Titleist isn't the only game in town, and the important thing is to get fit with what works best for you.  Working with a fitter to go over launch, spin, and descent to optimize them for you is more important than buying the latest equipment off the rack because a pro uses it, the color is hot, or you are offered a deal too good to refuse.

What I have found is trying to guess on my own can be a costly error.  Have also decided that seeing the ball flight outside is also much better than a booth in a retail store.  Subtle differences you can't see w/o hitting from real turf in real conditions.  I can easily improve my game if I just carried a mat with me and lift, clean, and place (on the mat) was allowed.