John,
There is no staple "best shaft" that goes with the 909 D2. I would have to say that your best bet is going to be getting fit by a Titleist dealer with their FittingWorks system to find YOUR best shaft with the D2. If that is not possible…
I tried a set of AP1's and while they felt good, I lost my ability to work the ball left to right. Dead straight shots are great if you are hitting them from the fairway, but impossible as it might sound, I sometimes find myself behind a tree!!! Hard…
Even if the PT is the non-bore through that is a .335 hosel I believe? Or is it because of it being a head only?
Tee box markers, every one a mini John Deere.
Here is a Studio Select Fastback modified belly putter with a welded mid-slant neck in a Chromatic Bronze finish.
Notice the double-stamps on this PGA Tour vet's clean Newport 2. Double stamping is when a particular stamp is hit twice to make it deeper, thicker, and more prominent.
Here is the face of that same putter showing some beautiful hand-stamping and Scotty's distinctive Circle T (Tour Use Only). Enjoy the tournament!
It's the subtleties that make Scotty's putters so fun to follow. Take for example this Studio Select Newport 2 Mid-Slant Tour model with a hand-applied Chromatic Bronze finish.