In my experience the racquet with less mass would swing quicker.
I've experimented with adding even 12-14 grams to the handle which is about 1/2 ounce and I feel I can swing said racquet quicker without the additional lead. The change in swing weight from adding 12-14 grams in the butt should not be significant...so I can only presume it's the added mass.
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Vantage 95, 63 flex : 337 g, 32.8 cm, 341 SW, Gosen Polylon Polyquest 1.24 mm @ 22/21 kg.
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