All a spark does is start the ignition of the fuel-air mixture. If the mixture is lit off, the ignition system has done its job. No need for anything fancy. If there is measurable gain in performance (HP, idle, economy, etc.) with an enhanced system, that means the original ignition system either wasn't doing it's job or something is out of tune and the enhanced system has masked the shortcomings.... kinda like using premium fuel in a regular burning car to mask spark knock.
95 E320 Cabriolet, 131K