Spark duration can be adjusted but it might get expensive. Since you have 8 coils there is plenty of time for each coil to do its thing. But everything has to be sized correctly and there needs to be a bunch of amps available. I have very little knowledge of what it takes once you get to the high boost that you guys are running so I'm not sure if the parts you need are even available. I'd think that from a physics standpoint the COP setup would be superior but I don't know if the engineers have made it happen yet.