Its the harsh action of the front forks that is the issue. Works one minute, not the next. Tried all settings and settled on sport plus 2 rider which jacked the back up a tad. But still not right for anything but smooth roads.
In context, S1r sport worked much better and that is an all out sportbike.
The GT is not is the same league as GS or Multistrada for the balance of composure over bad surfaces v outright handling. It would work best on a track though, but thats not where I ride my bikes. BTW weigh in at 13 and a half stone. Two up the bike was better, so part of the issue must be front spring rate. Its odd though that the back has a lot of suspension travel compared to the front. I feel that may also be part of the problem.