The 'user adjusted shot percentage' is the slider that controls the % of times u adjust ur shot and not the % of the shot once it has been released. Set it 2 0 and u will only adjust ur shot when u repress dunk button.
If contact is made by a defensive player ur shot will auto adjust regardless of ne setting, the trick 2 making these shots is 2 adjust ur shot b4 cpu does it 4 u.