Recent developments in ignition are really not new at all. "The claims are new!" One guy says his computer ignition and coil develops just enough energy to fire each individual spark plugs. Say What? Just enough energy to fire each plug? Interesting! The school I went to taught that ALL ignitions systems did that!
Back to the coil -- reams of claims and articles have been written, BUT, the law of physics remain. The hotter the spark -- high milliamps -- plus the initial high voltage to bridge the spark gap, combines with the ability to continue to make these sparks at high RPM determine the worth of the total ignition system. However, no system can make a "bad coil" perform like a good coil. Good coils are expensive, but take care, don't go for a fancy cover - all the cover does is look pretty.
At this writing, our "Mark II" is out-performing every "other" after-market coil -- BAR NONE.
Note: Must be used with a .4 ohm resistor.