Excited!
My favorite fairway woods were a 917 and 910 3 and 5 wood with stock shafts.
After a fitting about 2 years ago - where I identified a better shaft fit for me, I ditched the Titleist woods.
Tried an Exotics EX10 and later tried a Cobra F9. Never really loved either.
Bought the TSi2 without ever hitting it, but with a shaft that I know works for me. I'll see how it works and maybe add the 3 wood down the road.
I'm glad that Titleist offers many options for lefties and many no upcharge shafts. I wanted to look into some other brands but their shaft offerings (and lefty head options) are relatively slim comparatively.