Paul: Thanks for your insights and info on dwell and the AAN ECU, POS and coil system. However, if I hear you right, we still don't know if these "115 L" combined POS/Coil units are "dumb" or smart. At the price, I have to think they are "dumb" (i.e. passive). How could this be tested? Or is it going to be trial and success/brutal failure? Dave F.