You are getting frequent regens anyway, you just can't tell until you put on the edge.
I have the juice with Att and no DPF or EGR and even with it up to 5 can hardly ever see smoke. These trucks run really clean without the DPF anyway which makes it a shame to throw away all that fuel if you ask me.
Edge makes a good product and stands behind it. I wouldn't hesitate for a minute.