Hello HarryS, Thank you for your comment. I�ll follow your recommendation, forget the cosmetics and position the found neutral plane parallel to the swing plane. The current project situation can be found at http://www.4par.biz Step1.
I have noted that the minimum cps values can be found from a relative wide area, but the neutral plane, where the shaft keeps oscillating vertically, is at a certain point (within the minimum area). In my understanding this is the situation, when the load (mass centre of the tip weight) is in vertical position with the neutral axis of the shaft. However, in the finished club the mass centre of the head is many centimeters out of this neutral axis and there is always some moment to twist the shaft. So, I wonder how much the neutral plane test tells about the shaft behaviour in a real use situation? Best regards, <EHi> > When checking for frequency, also check how straight the tip weight bobs > up and down. > Maybe it is jumping irratically and changing orientations. If so, > forget about the cosmetics.
