OKAY OKAY I GET THE POINT.
Thanks all for the advise and i will go up on the mc21, take plenty of oil. the last 50 miles from cambridge to peterborough is all twisties so i'll get my own back for the punishment of miles and miles of mundane mile crunches and set about blistering the sides of the michelins.
Hey cgallant you've upset the misses but you've given me an idea...she can carry the panniers with all our clothes as i've only got a 250cc and she's got 650cc, which is more suitable for lugging my gear (plus that weight will wear out my sticky tire in no time).
thanks again.