The trouble with running COP wasted spark is you are of course doubling the amount of work done by each COP, and with them already prone to failure in lots of instalations when running big rpm, thats obviously the last thing you want to do.

Given that the L8 is already sequential for fuelling and has the phase and crank sensor required accordingly I am sure it was pretty minimal extra effort to run it sequential, just a case of physically needing a couple more wires that makes it more difficult from a plug and play point of view as you must be running out now on the standard loom plug!