You could buy a Technics, which from what I've heard gives you most of what a half decent Linn does with none of the faff and less cost. No, I'm not kidding.
Personally, I love the LP12 and have no intention of getting rid of it but what can I say, the deck can be a pain in the rear. There are so many configurations and qualifications I hardly know where to start.
First, who built the deck? From my experience there are more people who aren't very good at setting up an LP12 than are. I'm talking about Linn dealers here. You can't assume it's been done right and if wrong it will not sound good.
The Ittok is a good arm, much better than a Basik, but it is not a neutral sounding device. It has great bass but an upper mid/lower treble lift which can make it sound dynamic and impressive on good recordings but harsh on others. You end up playing records that sound good with it rather than just playing the music you like.
The Cirkus bearing is cleaner and more detailed than the older bearing but it does remove some of the air and fullness. I prefer the older bearing but I can live with the Cirkus in the right context.
There is nothing wrong with the Adikt except that it is ridiculously overpriced. It's a Goldring G1012 in drag. You can do better but it sounded ok before, right? It should simply sound even better if the rest of the deck was right. It's not your problem unless it is damaged.
So my bet is poor set up, something wrong with the arm or you just don't like it. You may not like the Cirkus but it shouldn't kill the sound the way you describe.
