I've finally got the goods to mod up my 300g, courtisy of TW, so i got to it. So I started off with applying a heat strink sleeve to the handle (i bought mine a grip smaller cuz it was on discount and had no other size). I followed that with 5 grams of folded up lead tape and an additional 2 grams on 3 and the 6. I immediately head to the local wall to test the results. Much better than the 10.8 oz piece of crap that it was. But I notice that there was still a pingy feeling to it. Everytime the ball meets the strings the string will vibrate like guitar strings and shock will go all the way down to the handle. Fine. I proceed by taking out the folded lead tape, dump about 3/8 oz worth of fishing weight, and added 2 grams to 12 o'clock. And i still feel it! by now the racquet must be at least 12oz. But still not where i want it to be. How can i get rid of the vibration? I odn't feel this with my diablo mid and pk ki15pse. The string that came with it is prince premier softflex 16. Is it the string's fault? or should i just give up... Help!!