I have a question is it possible to making coil splitting/tapping happen in a guitar that does not originaly have it? I would take it to someone to solder/make but just asking if it's possible.
You can do coil spiltting if it has 4 wires. Coil tapping involves the way the pick up is wound when manufactured.
yeah it depends on the pickup, a lot of pickups have four conductor wiring so you can do coil splits without a lot of heavy modification, as for coil tapping, you can do it, but you have to completely rewind the pickup (major pain in the ass).
Do GFS pickups have 4 wires out?
never even seen a GFS pickup, take it out and see.
If it doesnt have the 4 wires originally its not easy to put them in.