[Michael C Henry]

Is there a chance you had your foot resting on the clutch pedal? The clutch piston needs to start from an at rest position where it picks up fluid from the resivoir. At rest the small hole from the resivoir to the master cylinder bore is open. As soon as the pedal starts to move the piston in the master cylinder bore the hole is covered so fluid pressure can start to build. I've seen where a guy would be so proud of adjusting any slop from the pedal (usually the brakes) only to gradually lose throw or stroke.