so i had my truck in for the low-sulfur furl PCM update the other day and while the tech had my truck plugged in, he mentioned to me that my tire size was not calibrated for into the ABS. this was total news to me. I noticed that my brakes have been "spongy" for a while and asked him about it. He put the correct tire size in and a 300% increase in brake sensitivity. It was like night and day, very similar to replacing the pads. it was great. Has anyone else heard of this?? if not, go in for the update, it was awesome.