I was having some issues with the car at one point and decided to use Azenis for a little while. I ended up figuring out my issues and getting tired of running Azenis (prolly about 2-3 sec slower than a full tread RA1) well before they were used up. I ended up selling them to an autocrosser with about 70-80% tread left. This actually did not work out too bad as far as economic investment, but I was not having much fun running Azenis when everyone else was on race rubber.