Once I took the car to the track with a buddy who knew better but... I pulled the car off the trailer and started gettting things ready, he went around and checked the oil, tire pressure etc. Well long story short i did a burnout pulled up to the line, left on 2step the car launched and felt like i was on a puddle of snot almost lost the car and had to lift to get it back under controll. (rear felt like it was mounted with rubber bands) I pulled back into the pits confused thinking i must of had broked a coil over or something. I told him what had happened and he explained, well when we took the car off the trailer one slick only had 2 pounds of air in it, so i matched the other one so they would be the same. Guess who doesnt get to help with that job anymore!