Just to follow up on this, a stiff pedal is normally caused by wear to the guide tube that the release bearing slides along when you press the pedal.
The hydraulic systems in the A2 are such that they'll very rarely cause stiffness at the pedal and the spring fingers on the clutch pressure plates are so stiff that you'll rarely get pedal lag (where the pedal is slow to return after you release the pedal).
Having recently had my clutch replaced, I was amazed at the lightness of the new setup - it's something that I'd got used to and it was astounding to feel such a light pedal action when the new sleeve and bearing were in place.
Now, the bearing itself is rarely at fault - it's normally the sleeve it operates along, which is a cheap item (around a fiver), but to change the sleeve requires the removal of the gearbox from the car, so you're looking at 4-5 hours labour. As you're paying out for this, you may as well change the entire clutch at the same time, especially on non-dual mass flywheel cars (so that's all A2s apart from the TDi 90).
Mike Mars asked me today if biting point would be different as the clutch wore, but it won't change, so is no indicator of a wearing clutch. The first indication you'll get is slipping, when the friction plate is down to the rivets. In my experience, clutches in non-mapped cars are good for around 100,000 miles. In tuned cars, this will drop to around 75-80,000 miles and in extreme cases (like that of Tank!), you can sometimes get as little as 35-40,000 miles from a friction plate.
They're not cheap items to replace, but are an integral item to driving pleasure and as a side benefit, I've noticed a slight improvement in economy since replacing the clutch, probably from better transfer of energy from the engine to the wheels.
Cheers,
Mike