I have a 2014 6.7 and after installing a H&S DPF Delete Tune and 35's, I noticed that the transmission has some "touchy" spots. It's mostly in 1st and 2nd when going slow thru a parking lot or turning on a street. When I let off the pedal and then back on, it seems "jumpy". It feels like I'm giving it more pedal than I really am. I have played with the different tunes loaded in my XRT Pro and also turned the trans tune on and off, and it feels the same. I had a 2010 6.4 with a H&S tune and it drove perfect. Has anybody experienced this? Will a custom tune smooth this out?