No need to disable DTC codes with B1650 either

Each to their own mate. As long as it works.

Personally I prefer no hole and not having to disable DTC codes, but thats just me.

Im with you on the 5% being hardest. Also I was with you on the min idle airflow affecting idle dip, until after many many changes fixed it with b1650. Idle is rock solid, its transitioning back to idle where it dipped.