What about the issue where the ignition switch has a gap and there is a moment when neither ign1 nor ign2 has power when going from start to run? I guess it really messes with the Gen3 Hemi swaps. Pretty sure it isn’t an issue with a Magnum swap, and probably not an aftermarket controller.
I've never had a problem with that. I did hear about a setup that a guy built using a time delay relay because he was concerned with that issue. I've also seen people use a diode to connect the two circuits but I've never used that method myself.