Depends on what your doing.
Fully forward on the stick and it will produce lift to the limit that the designers deem to be the max the airframe will take or they think you will require. They may stipulate a max air speed which you may use the full range of the controls.
When you do your full and free look at the tail and see the range of movement. If the chord is pointing down it will producing negative lift and if its pointing up its positive.