Re: SD 59 coil split?
Welcome to the Forum!
If your 59 is a two conductor humbucker, it's impossible to split without rewiring. If you do want to split your neck humbucker, you need to get a four conductor version. It won't sound exactly like a single coil when split, but it will be close and will giive you another sound to play with. I personally like split humbuckers at the neck of my guitars.
BTW, how is the Stern model? It caught my eye when it was introduced but I haven't gotten around to trying one.