Ah ha! and I thought is was me going bonkers.
Part 9 now loaded, and Part 10 uploading as I speak - the first ride. My son said: 'Dad, it's sounds different, it's quieter, the tone is richer.' and I passed my friend and his wife, they both said 'it's quieter, what have you done?'
In the end I will probably have to do it again and put matching new pistons and carbs with another rebore - but now I have done it, it holds no fears except for my wallet. And you know, Carbon, it was your video which led the way. Get those IPAs out, my friend, I'll be round in ten minutes.
Anlaf