Ok i've got a 1991 Camry 3sfe. When i use the clutch harshly (ie Rip it into 2nd) it goes all floppy like it's only working off the slave cylender. It sits about 2inches off the floor and won't come back up unless i lift it.
So the clutch "throw" has gone from about 6inches to 2!
The clutch DEFINATELY is NOT slipping. But i reckon it needs a new master cylinder...