I have used Metzlers since day one. As most, I have been thoroughly satisfied. About three weeks ago, on the advisement of my dealer, I purchased a Dunlop 404 front and an Avon Venom rear. I have no idea how they'll wear, but, I have never experienced such a dramatic, positive change in handling characteristics. Dry pavement, wet pavement, and newly paved with those crappy stones and tar - All conditions were met with unexpected performance. I say all this only because its a mix that I have never heard anyone using.
Perhaps I'll try to remember to re-post closer to their end of life.