please don't feel left out is is not a nice sound.
So as far as the ice build up theory goes im not sold. my drive to and from work is only about 4 miles each way. but giving the theory a chance I though id try to break it loose before I left work today. before I pulled out of the parking lot I held the brake and put it in gear and torqued up the mounts forward and back and let it roll a bit then hit the brakes hard to flex off any ice. I left the parking lot and once I was straight on the road, accelerated and there it was again. sounds just like im feeding an ice crusher to make a slushy. by the time I get to my street it usually will not do it anymore but there is a nice icy patch in front of the house. so just to hear the sound of the track control is stopped and jumped on it a bit, that is defenatly a different sound.