Just pulled the trigger on a set of Federal FZ-201 semi-slick DOT track tires size 285/30/18. They seem to get great reviews in Europe and at $680 shipped to my door the price was hard to pass up. I plan to run both track days and local hillclimbs this year. I will have 305 slicks on 18x11's for the track and the Federal's on 10's for the hills as they should grip better with short runs and no warm up. I will report back in the spring on how they work. If anyone has any experience with Federals I would love to hear.