i've just adjusted mine (for the first time in a year) so wasnt really sure as id forgot which way tightened it etc....
turns out i may have been tightening it up the wrong way
looking directly in front of the mech and turning the screw clockwise is tightening the clutch right?
but also when i messed around with it last night, how many turns does the screw do before it wont turn any more? as far as i can remember there didnt seem an awful lot of turns (full rotations) of the screw involved? is it buggered or does it literally only turn a little bit from slack to tight?