So the fault was indeed a full failure of all the Centa rubbers? I'm a little surprised that all 4 should fall apart in one hit to be honest, as it should still move with only a couple in one piece. Anyhoo, glad it's fixed and that was certainly the most cost effective clutch refresh we've had so far I think :-)
Efficient searching of any Forum is a bit of an art, but the Search above (provided you select the Three Wheeler Forum only) does a pretty good job for most I think.