Don told me that his original ECU could not handle 12v and that is why he had it redesigned with the new 12v coil.
I ran his old ECU with another brand 12v coil (no ballast) on the street for about 6 months with no issue. That ECU "might" last for a while with 12v on it.
I bought his new 12v ECU/Coil but I only have about 4 weeks driving time on them, but so far no problems.