On my ProIII there is a brass barrel that adjusts the tuning of the stop it's a two piece screwed together affair that is threaded with a spring in the middle. It is srewed longer or shorter to adjust it. You'll find that when cold, it lowers it more, so try to tune it when it's warm.
For the mushiness removal there is a second spring that is given tension by loosening the tiny set screw in the far collar and squeezing the spring together a little more, then tightening the screw again. Too much compression and it won't go all the way down. Too little and you won't feel it well enough.
I will post a pic if you are still having trouble and see if we have similar mechs. These Buds are all dofferent in one small way or another.
EJL[This message was edited by Eric West on 20 October 2003 at 09:13 PM.]