I just ordered some lead strips to place in the head of my racquet at 3 and 9 o'clock for more torsional stability. Too many times on slices and backhands I've felt the racquet head rotate in my hand, so I believe this is the best way to handle it. Not only that, I need more punch in my return of serves. This is the absolute weakest part of my game because too many of my shots just fall dead because the serve is too heavy. To all of those that experimented with this setup before, how many lead strips did you apply to these positions? And was counterbalancing necessary because the head became too heavy? Open ears to all answers!