An inductive system cant saturate the coil as much as a capacitive system can therefore will ultimately have more spark energy at the plug. The COP would need a capactive box for each coil and then I dont think you can take advantage of the prolonged burn with a capacitor which is an all of nothing once released. The benefit of an inductive system is the longer burn.
I havent looked at this info in awhile. I believe there have been some improvements in LSx coil tech. Also, the Holley/electromotive wastespark setups can produce some pretty good spark energy and have a longer burn cycle than a CDI box. Electromotive has claimed for years that they have the end all ignition system and they are the ones that designed the C3I for GM.
Seems like the biggest problem with forced induction is firing the plug at high cylinder pressures. I would guess that CDI would shine in this area. So question is how much is really needed and how much is overkill. To put it this way, the stock ignition is working already, so is COP a 2X improvement over waste spark ? or 3X, 4X ? If so is CDI 6X for example ?? Trying to get a feel for what will work but not be so overkill that its not really needed or worth the hassle.