No need to bring drama bullsh*t from other places. This isn't duramaxforum or Facebook. I am another who switched from Diesel Addiction tuning to Kory Willis tuning. I had Dustin's for a year and a half. I wanted to switch to something different just to try. I am impressed with the differences and drivability.
If I get tired of this tuning, guess what I'll switch to Robs tuning. Then after having that a while I might switch again or create my own. Or I'll go back to whoever I liked best. I will say I have a 150 tune and I will run it to see if its any faster or stronger than Dustin's 150 tune. After every mod I've done in the past, I've ran the 150 tune to see how much improvement it made.
This is a community of diesel enthusiasts, not for drama or bashing. Lets keep it that way.