Originally Posted by Stu @ M Developments

You have totally missed the point of going to wasted spark I'm afraid mate.

Of the 40,000 volts your Group A coil pack may produce under ideal conditions, you will get no more than about 6000 at high revs because the available charge time between cylinders is tiny. I'm sure you can appreciate how many times the coil charges and discharges at 6000rpm? Now add into the equation you lose around 20-30% of your spark voltage when you have to jump the daft gap in your dist cap and on the rotating carbon brush/rotor contact point, you can see your spark voltage is pretty poor.

A wasted spark coil pack is TWO 46000 (Taking your word for it for ease) volt coils that take it in turns so they have twice as long to charge, usually giving in excess of 20000 volts at very high rpm, and they don't have to jump a spark in your dist cap or lose power in the carbon brush...