[buzzinhalfdozen]

Art, after thinking on this a bit, I believe I know what you're trying to do. You're trying to correct the error between what the EMS says the timing is and what you're seeing with your timing light? If this is correct all you need do is watch what the ECU is calculating as the timing...check with light and set the offset to correct the error. Assuming this is what you're after, remember which tooth it's actually triggering off of is more or less irrellevant as long as the calculated and actual timing numbers match. Joe BTW 1/4 inch pick up seems pretty wide how far are your teeth spaced apart? I'll assume much more than 1/4 inch as I've been told the pick up needs to be at least minimum 1/2 the width of the tooth spacing.