If everything was correct, would the back wheels be turning when I rotate the engine by hand with the transmission in first gear and clutch pedal pressed with the car on jackstands? All this time, this was my telltale sign to tell me if the clutch would disengage fully. But now I'm thinking, since there is absolutely no resistance on the drivetrain, maybe the wheels would turn since the slightest contact between pressure plate and clutch disc would make a bit of friction...