Hi Damian,
I'll also go as far to say that your engagement lever which should have a flat section on it (where the adjuster bolt sits against) has been worn to a full radius which will be the final part in the whole clutch make up that is allowing itself to be vibrated to the engaged position rather quickly. Lets call it an Auto Clutch now.
As far as the back of the cone is concerned, if that thrust pad is worn that badly then the flat surface on the cone will have succumbed to a domed mating surface.
The clutch on the 33 is different dimensionly to the 45.
Cheers,
BB.