ONLY ONE MENTION OF THE BT 021! I'm shocked.
I loved me Z6s. Two or three years ago it seemed I was one of very few on VFRD that ran them. Now I've been turned on to the BT 021 :491: but only the rear! WARNING-BT021 Front is total crap
Get a PP2 for the front instead, but keep the BT 021 rear. this is very similar to what BR is running only slightly cheaper and somewhat fashion faux pas to have a different manufacturer on each end. They are both dual compound tires and the set up is great.
Z6s are a great tire for the money but if you can afford just a little more I highly recommend this setup for anyone that has to do some slab with their twisties.
Or the BR set up with the PP2 front and PR2 on the rear. I was just able to get a good deal on the BT021 rear and I was already in love with it.
The point is dual compound is the way to go. Someone said that Z6s are dual compound... I'm not too sure about that. at least they weren't two years ago.