After spinning my car at the SE-R Convention track event and flatspotting all 4 tires I had to use my MX's for several sessions. They impressed me. The grip was good and steering response was good. I run a lot of negative camber so rollover was not a concern. Tire wear was horrible with full tread. They clearly need to be shaved for serious track usage. Of course my car can destroy front tires on the track pretty easy if you are not careful. I think if they were shaved they would hold up ok. Never used azenias so I can't compare to them. They were better then the old Victoracers that would not bite for anything that day. They also did not go away after some heat went in them on a mid 80's day. I have used S03's at the track and they clearly were better then them in the dry. Just thought you guys would like to know.