I like O damps, so to answer your question, I would recommend using one of those Custom O Damps without the solid core. I'm very conscious of adding any weight to my racquet. My racquet is about 12.6 oz strung, and if I add any more accessories to it, I notice the difference in maneuverability. A dampener that weighs only 1.5 grams (like the Sampras O Dampener I use now), will have less effect than one that weighs over 3 grams.