So today I left work early and was able to drive 80mph down a section of hay that was recently grooved and the car felt very twitchy. I'm not real sure why they do this to the roads but I have to assume it's part of a resurfacing project. The grooves looked to be about 1/2" deep and about 1" apart and they followed the flow of traffic. I could really feel the car wondering around in the lane while on this mile long section. I don't remember my GTI ever doing this and was just wondering if anyone else has driven on such roads and what your take was. Thanks!