FWIW I went with the iSweep cancelers and have NEVER had a soft or hard code thrown!

For an apples to apples comparison, a fellow autox buddy has the KW cancelers on this 2015 with Bilstein B8s and H&R springs, and EVERY event he gets both soft and hard codes thrown that neuter the car's performance. No issues with driving on the street.

This 'side by side' example plus all the comments here about TAG issues, revisions, etc. really solidify that the iSweep are superior and truly a 'set it and forget it' install IMO.