Spoke to DK Motorcyles who sold the bike originally and they have confirmed that the clutch basket has indeed been replaced. In fact it had a new gearbox, clutch modification and tip switch fitted at the same time. It has only done 900 mile since then (Feb 04). I have been advised that the nuetral problem may ease as more miles are put on the bike, but i am not holding my breath! At least this has put my mind at rest in this matter.
Thanks for all the advice i have received, what a great forum!