I've also heard from a pro driver friend that the 8ight cars start to handle best after about 3 gallons. Which meant they handled better with some slop. When the car is moving, the suspension is always cycling. Some slop will get lost in the suspension cycling, and is certainly better than when something is bound up. Even going down a straight you will never be hands off the wheel to go straight. You drive the car where you want it to go. A little slop won't stop you from being able to do this.