Thank you, everyone, for putting your two sense into this discussion, it has now been mostly sorted, the main problem i had as the dm was that Bernie was the only character who was playing with an APG class ( since i stopped useing apg because it made my first game to complex), so i let him keep his class. the first few level of the game he was by far the most powerful character but now i have done some tweaking and now its fine. the reason i didn't like the focus trance is because my campaign is very knowledge based and being able to pass all the knowledge checks make the game boring.