True alnico wide range pickups
Check the las picture (from left to right: CuNiFe, AlNiCo, FeCrCo 2, FeCrCo 5)
AlNiCo can't be treaded that's why Fender uses CuNiFe, not due to sound properties, just because is the one that can be threaded. Nowdays a lot of makers do the pickups with threaded magnets and market his wide range as alnicos but it can't be done. They use FeCrCo, one of the two types that you can see at the right in the picture. I have develop a method to make alnicos to look like screws (without the thread) and now I'm using several alnico grades to make Wide ranges pickups.
When compared to an original wide range set with cunife I can tell that the alnico version sound better and this makes senses. If CuNiFe is the holy grail of sound, then why Fender only use it in the wide ranges? the answer is easy, alnico do sounds better.