Nice idea. Id think that assuming we are swinging the sweet spot, we would hit the sweet spot. Homer Kelley in his tape with Tom Tomessello (on the Peter Croker site) said something to the effect that "if you are not swinging the sweet spot, you're swinging the shaft and if you are doing that, your in trouble". Im thinking shank.
He also spoke of old long nosed clubs and how they promoted CF closing the face. This makes sense to me. Take a center shafted putter and compare it to a heel shafted putter. Even at these low speeds you can feel the heel shafted putter "gateing". Crenshaw's old 8802 putter for example, you have to time its closing but it is sweet and packs a little extra punch too I think.
OB
I tend to agree. However, a small but important implication is that in case of a center-shafted club the shaft plane = the sweetspot plane.
Therefore, we can go further and create a variable weighted toe/heel of such a club and see if e.g. with a heavy toe/light heel center shafted club (imitating the proportions of a standard club to a degree) the shaft plane still equals the sweetspot plane.
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