I hope this isnt considered spam to answer a direct question as I have been a member here for probably close to 10 years.
The new pickup uses an alnico 5 rod- non threaded for the poles you cant see and it uses threaded magnets on the adjustable poles. Its a type of material they harden after they machine it and it has alot of properties alnico 5 exibits.
I found after a few years of frustration over cunife and having people request this pickup over and over that with some experimenting alnico 5 has alot of the tone qualities cunife has as far as how the bass responds- its tighter and punchier than al 2 but al 5 has a little more magnetic strength than cunife so I use a little shorter magnet than usual- length in alnico is directly related to strength, not quite as short as telenator mentions somewhere but thats why i used a shorter magnet.
I build the proper size bobbins in house- i had covers and baseplates made for me to my spec, the lead wire and coil wire are made for me to spec. These are better made than the originals and will be far easier to service 50 years down the road if they ever do need it. Thats one thing I learned off Leo- make it easy to service!!!
They sound really good clean or dirty and have an almost single coil like attack.
I am happy to be able to offer these as a complete pickup ready to install with mounting screws and springs included- I didnt overlook anything.