[golfbulldog]

Dowels represent the invisible - the sweet spot plane - where the pp3 in your hands is the same as the normal pp3 but the tip of the dowel represents the sweetpot ( the centre of gravity of the clubhead) - it is a visual representaion of a line of force...at least that is the way i see it - please correct if wrong!

It is confusing because it looks like a shaft but rather than have an imaginary clubhead at the end of the dowel , one should have an imaginary hosel on the undersurface- then you have no problem understanding that the hosel rotates around the sweet spot and not the other way round.