hi everyone. I managed to get an ibanez btb556 quite cheeply, i am going to pick it up on thursday. its equipped with the bartolini mk1 pups and pre. i have read a fair bit about this, and the pre is apparently a bit rubbish, so are the pups to to a certain degree (apparently?). I was wondering what would be a good substitute? I have looked at the obvious, a bartolini ntmb 5 pot configuration - but i was wondering if there would be anythign else suitable? been looking also at aguilar and nordstrand? any feedback would be appreciated.