I'd have to disagree with that statement. Any sizable drop will result in too much negative camber in the rear. Due to the suspension geometry of a 2G, the rear gains more negative camber than the front. So to maintain any kind of balance, you'll need to dial out some of that rear negative camber with spacers. I typically run 0.75º to 1º less negative camber in the rear relative to the front to achieve good balance. YMMV