Thanks all for your comments, as always some real interesting stuff.
I agree that as long as the bike is 'ok' and I think we'd all agree that the 748S is pretty ok in stock format, it's more about the standard of the rider than the wizzy bits or even the colour, though red is clearly faster than yellow of course!
I know that the main limiting factor is me and not my bike but I have been experiencing some 'rear end' problems especially in the wet at Mallory that I believe (and so do Sigma) would be resolved by a slipper clutch.
Hey, why not use the 'better' kit to help your 'less than brilliant' riding ability.
Keep on postin!!