3 and 9 will make the torsional stability higher while slightly increasing swingweight. Lead at 12 will increase the swingweight the most efficienty and aid in spin generation but not torsional stability. The PS85 doesn't need any help with stability but more is always better in that regard. As far as "livelyness" is concerned, nothing i've done to mine have diminished the awesomeness of the racquet.
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PS85, 367g/345sw, Pacific classic@58
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