Anthony, it depends on a variety of things. For instance, some players prefer a heavier swingweight and some a lighter (like myself). The variables that go into determining the amount of weight to put into the sole weights basically revolves around length of putter, weight of grip, weight of head (models vary slightly) and preference of swingweight (how heavy or light the putter feels during putting). I would suggest borrowing weights from your local Titleist rep (assuming they have some) and experiment. I keep extra for members at my club for just this reason! Good Luck!

[A good starting point is 34" putters generally use 15 gram weights and 35" putters generally use 10 gram weights]