timing tape install/timing light accuracy

My personal experience, and reading discovered that the induction pick-ups are so sensitive, and the high tension voltages are Soo hi, the pick-up triggers from the orher h/t wires nearby.
If you isolate or move the induction pick-up away from other wires, down by the spark plug, not up in the loom, - the roaming scatter/ multi-flashes can be greatly reduced.