A note on scatter winding : The problem with industrial pickups is they are "accurate wound" which mean each wire turn lye next to the precedent in a very regular pattern. This is causing a parasitic capacitance which tend to cut high frequencies and mush up the lows. That's why scatter winding sounds more open, punchier, cleaner.
Lundgren's, believe it or not, are accurate wound (I asked the man himself about that as I'm such a geek
) so it means you could get really good pickups even with accurate winding, but needs a bit more love and involvement you can't get with mass production.
I'm in the process on gathering hardware, tools and material to build my own pickups, I hop I'll get to the point of actually doing something usable