Something to play around with. Is it perfect? No, but will give you an idea of how changing different variables may impact distance. FlightScope Trajectory Optimizer
Here is a guess; the 0.125 may be to allow the use of a taper tip shaft and to help center the shaft in bottom of the bore. What little space there may be between the taper shaft and lower bore wall...
Ryan, I built a set (4-GW) of Forged DBM's last June. At "standard length" using a 71 gram shaft (uncut) and a 50-51 gram grip, I didn't have to add more than 4 grams of weight at the tip to hit D2.5...
The sole of the driver is probably a better choice for the hotmelt adhesive. Since you are trying to "tune" the sound of the driver, trying to cover the largest area possible with the 4 grams of adhesive...
Hopefully Golfworks will post to directly answer your question. I built a set of the DRM TSW wedges for a friend several months ago. The head weight on the 54 was 295 grams and the 56 was 299 grams. ...
The TS3 looks to be very similar to the TE Forged or DBM Forged. Will those heads continue to be available? Any chance for the TS3 being available in the diamonized black metal finish?