are you sure your clutch isnt on its way out??? my golf was very high so i changed it a few days ago and its all better now but dont leave it till late, my clutch had a broken spring (while i was still using it) and it almost fubbered my gearbox and flywheel
i think on auto adjust cables you pull the clutch lever up on the front of the box to get some more adjustment. every mk2 i've had has had quite a high biting point any way even with new clutches