I've been running Metzler Tourance for quite a while now. I like them on-road and can live with them in dirt but they suck bad in mud or loose stuff. I very much like getting 10k on a set of tires and they do well in the rain too. Thinking of giving Avon Gripsters a try. Any experience with them ? Any other tire with OK on/offroad performance that you get decent milage out of ? Thanx for any thoughts