Fistly can I point out that although I do like my dinner, I am not a particulary big or heavy person!
Secondly if anyone wants to send me a copy of Razzle they are quite welcome to.
Thirdly I have always used Shell Advanced Ultra 4 oil in my bike as recommended by Ducati.
I really think it is a case of my clutch just starting to wear out. You have got to remember that when riding a small capacity bike I am sure you do many more gear changes and generally work the bike much harder if you want to keep up with larger capacity bikes.