So, I'm definitively convicted with these bushings. Will buy them as soon as possible !
You took the harden, didn't you?
Like Andrey asked you: could attach here some pics of your tool? Could be interesting for me as I'm doing the job on my own
Edit: what about the torque? Did you use the advised one by AKG? Did you add some Loctite or whatever (don't like this option)?