LP - I was going through Tuttelman's site (shaftlab stuff) and the discussion seem to indicate that the shaft bends more on the 1:30-to-7:30 line over the course of the swing (especially at impact). If the spine (NBP) is aligned this way then the shaft is bending against the weakest axis - would this not lead to greater consistency?
I posed this question to Dave - his response - more analysis is required - perfect engineer.
Also posed this to Kauffman - his response - buy shafts with little to no spine - very practical.
Something for you to think about - or test if you feel inclined and have a very large spine shaft in your discard pile (and the snow ever melts).
Charles