. . . . . and finally, I read on the internet (!!!!!!) that if the rear shock is too hard, it will try to overtake the front end in certain circumstances causing the tank slappers I am all too familiar with. So, as I had tried almost everything else, I thought I’d give it a go and backed the rear shock preload right off to the point where the spring was next to being loose and hey presto, I’m much more relaxed on the bike and try as I might, can’t induce the tank slappers/death wobbles!!!!