Well, after a lot of heart searching and cogitation I abandoned the single plate route and fitted a 10 spring V10 clutch assembly.
The difference I have noted is that the drive take up is smoother, it is barely perceptably down in terms of eagerness to rev, so I would say that with the factor that it is a road bike and is now non-grenading, I am really, really pleased that I have gone to the trouble of changing it.
Yes, I did penetrant test the alloy flywheel from the original single plate unit and, yes it was on the road to failure.
That said, the grenading clutch aside...yes it is a big exclusion! I am really chuffed I bought the Scura. The running gear is top quality.
Nige.