In my experience, you should have seen a decrease after 50+ miles of driving. Is it still just as bad? Also (and I really need to look into this as well), I would think that 11 in tire-years is like 90 in human-years. My tires are approaching that number, and even though they are low miles and look great, I have been meaning to replace....so thanks for the reminder.
. Another thing on this years to-do list....