It takes the place of O2 cross counts in data stream. O2 Cross Counts in ADX will just read wrong when this is done. Look at Spark Advance From Hack* for spark advance. Which will be wrong and show coverted O2 cross counts if Hack* is not done.

ADX Conversion needs to be changed from 0 if base timing is not 0. Or look at Spark Advance From Hack* + whatever distributor is set to.