Hi all,on returning home from a camping trip fully loaded.Riding on the motorway became difficult to say the least.going around the 70mph mark what I thought was wind buffeting turned out to be down right scary when overtaking hgv's etc,found myself fighting the steering to keep control.To the point where I decided to leave the motorway and travel home the back roads.Tyre pressures were wrong,front was 35psi,rear 38psi due to a faulty garage tyre gauge.but could this have caused such a severe handling problem?.I have a givi touring screen fitted,the rear shock was set at standard,tryes have only done 2k.Any ideas please.