Listening to Robby during the 2nd practice session, he was loving the car. It started off a little too loose, but came to him and was neutral. It sounded like they were running on scuffs because a car would come out with sticker tires, pass Robby, then a few laps later, they were coming back to him. At the start of Happy Hour, his car was tight, tight, tight, tight everywhere. So the change they talked about making at the end of the 2nd practice was the wrong change to make. He pulled in to make the changes to fix the tight problem and I turned off my scanner so I don't know if the changes helped...but it did look like maybe he had tires that were stickers or had just a couple laps on them because he was running faster.