I guess because I have leaf springs and my car raises under acceleration and kind of drops it's weight under decelerating. When I hit the brakes it seems like the weight rolls forward and off the back a bit. I don't know if you're supposed to accelerate decelerate hit the brakes when things get all out of whack on one of those 9 second runs? I think the suggestion that his friend was making- when you're trying to real some nasty happenin's back in that's not when you want a tire to go down!?