Apparently the VF frame technology is supposed to reduce air resistance and allow tighter tensions. My friend owns a VF model of the Iso 85. And he gets his tensions at a 22lbs minimum. Besides that i'm not sure..... But i wouldn't spend the extra cash on the VF model.
reduce air resistance?
i found something about shockless grommets. does that sound familier?
and what difference would that really make? i heard that it would allow the strings to bend and flex on the frame easier and with less loss of power. i'm not too sure.
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