Ballast resistor with electronic ignition

We just went over that in another thread. The ballast resistor protects the coil regardless which ignition system is used. If it wasn't needed it wouldn't be there. Here's the proof, The original electronic ignition had a dual ballast resistor. First half protected the coil , second half protected the ECM. When the factory found they could delete the second half, they did.
If you have one of those fancy aftermarket coils designed to operate on constant 12 V system voltage you can delete the first half too.