I found out the hard way, that tuning could involve killing the effectiveness of the cycle. I have no idea what I did specifically that hurt it, but it was clear that I was going to run my tune in regen, nearly full time because soot was building up as fast as the regen could remove it. I am pretty sure it was not a dirty tune, but rather, I change SOMETHING that killed regen effectiveness. As soon as I reflashed stock, the soot melted off at 10X rate.

I started this thread to discuss one thing: Regen criteria for fast effective regenerations.

If you have some educated ideas on what parameters constitute more effective (hot) regen, then please contribute. I would really like this to be an educational thread for tuners, so that we can all benefit. I wasted at least 40 hours of tuning, and would like to help others not follow in this path.