Excessive wandering when you hit bumps is a common sign of bad LCA bushings. Other things too but bad LCA bushings will make for a wildly wandering ride.

When you adjust the front end height be sure to loosen the LCA pivot and bounce the car to release the tension on the bushings. Then tighten the bushings with the car on the ground at the adjusted height. If you don't release the tension it can cause premature bushing failure.

Hope it helps.