Just to clarify: the quotes cited in the above two posts are not mine.
Cheers Stephan
I'm sorry... I've just correct my post

anyway I have done my comparison exclusively with the clean samples of the BK Official site... I don't know how they rec the samples but I think that they make it trying to preserve the differences between the various P.U.s... so I repeat, listening the Emerald (neck) and the Rebell Yell (neck) I had the impression that the RY is less bright and more balanced but if you tell me that it isn't correct I'll keep it in mind

thanx again