Not sure I agree with this. If the freehub body has well worn bearings then MH's comments are applicable. Taking the body apart and trying to "adjust" the bearing play will likely be a lost cause. He did end with the likely solution for whatever plagues it, replacement.

I, too, have spent many hours (when my time wasn't the value it is now) playing with those thin shims within freewheels. Trying to minimize freewheel bearing slop. Some brands are nicer to work with and have more consistent function then others. When freehubs came about I shook my head, knowing that reducing the bearing capacity will create more wear over time and increase the cost of repairs. All this in search for more and smaller cogs. Both "features" not really needed to enjoy your bike ride. Andy