sinking clutch...

[Beatty, Robert]

After replacing my oil pump, I fixed my oil pressure problem finally... UGH!
On to the next issue.

Car is an 89 200q sedan

The clutch has a tendancy to sink to the floor if you "ride" the pedal.  In
other words, if you leave your foot on the pedal while your driving, it
sinks lower and lower until have virtually no clutch action at all.  If you
stay off it, then it stays high and there isnt a problem, though it still
feels a little funky.  (i think i need to adjust the pedal itself as well
for that minor bit)

The clutch is only about 30k or so miles on it and the slave and master are
both new, installed in August of this year.  I have pressure bled the slave
in both directions, from the brake master reservoir downwards and then the
reverse of that through the slave bleeder screw.  If theres any air in
there, I have no idea how you would get it out.  I am not losing any fluid
so there isnt a leak anywhere.

So what would cause this to happen?  I was thinking of perhaps changing the
master?  Anyone seen this problem before?

Thanks!

Rob