I use about 20 gr of lead tape on my driver; 10 gr directly above the soleplate across the back center of the clubhead and another 10 gr along the inside left. I was driving the ball striaght previous to using the tape, and have not noticed a tremendous amont of difference. I do tend to draw the ball slightly on mishits rather than the fade I would get on off center hits previous. The main benefit for me is that I can feel the clubhead better now vs without the tape, and through that I have improved on my tempo as I now have more feedback as to where the clubhead is during the swing. Drawbacks that I have noticed are about a 5-10% loss in distance and a muted sound at impact. I have improved on dispersion however; I feel that this is due to my improved swing tempo which I directly attribue to the tape. I use a 44.5 inch DG gold stiff shaft which also adds to the overall weighting. I drive 280 now with the tape on center hits with a medium trajectory ball flight. I recently used a driver of a friend (sorry, it was a custom built job and I didn't ask the specs); the head size was a shade under mine and was shafted in graphite...I drove the ball to almost exactly the same spot, again with a slight draw. Long story short, I suggest that you work on your swing as my conclusion is that my improved consistency is due to an improved swing developed by using the tape rather than just the tape alone.