I rode the Volkl Bridge last season which is basically the offspring of the karma. I liked the ski a lot as far as All-Mt. versatility goes, but I thought it was to heavy for jibs, and to stiff to press and butter.
I just bought the new Line Anthems because I was looking for a softer, more playful ski...just like you. I haven't put them on snow, but I did click in in the back yard (I know, I'm a tool) and I can honestly say that I didn't have to put any effort into a tip stand, nollie, or any kind of flexing. I went with the anthem, because I felt like the the Invader is just too narrow underfoot for me.
Obviously you are going to sacrifice some versatility going with a softer ski, but you probably know that.
This years fujas is not playful, I went to the shopto check it out, and its pretty stiff, my suggestion would be invaders, some t-halls (last years are softer), Fujatives, AR6, go to a shop and check them out your self, that way you know what you're getting as opposed to buying online where you hope it will be the way you want it. Support your local shop