i think in my experience they make handling edgy and harsh like the race cars they were designed for but my missus has them and says they are fine now she is used to them. i wouldn't of thought they would wear that quick but may be wrong i don't like them personally as i can't see point on normal roads as generally roads round my way are bumpy in a roller but i can see why peole do like them and i think if you are considering track days they will come into their own