I still have Arsey's old Africa Twin 1000. The longest I've kept a bike. Bike before was 1150 GSA. You won't find that extra power you seek on the AT. I've no complaints and it will stop me writing cheques that my skill can't cash, but you do have to plan things out a bit. I sometimes wonder about KTM 1290s but I would get myself in the shit one way or another. I had a 1200TC as well - nice bike but ugly.
That 1150 GSA you had, was slow though