Well since I don't have time to switch between snow tires and summer tires all the time I have been drifting on my blizzaks. I only drift when it rains so I don't ruin my tires. Today was the first day I took the Z out in the dry and whipped a few circles and figure 8's around my local empty ikea parking lot. I went home and took a look at my rear tires and they were like half GONE compared to my fronts. Is this normal? I was only drifting for like 15 minutes. Thanks for any input.