Charvel MIJ just had a Holy Diver stuck in the bridge, replacing the SH-4. After a bridge Schaller change, the bridge tone is perfect. Alder body and maple board means, it's fairly bright. The existing SH-1 is ok, i love the PAF style, but it's a bit muddy.
I want to retain the PAF neck tone similar to the SH-1, so i am thinking the Riff Raff or Mule neck.
BTW, the HD is the same volume as the Seymour in the neck......just for future reference. :)