I run mine high for sale few reasons. First, I'm a big guy at 230 and the streets I ride in are a mess, I just feel more secure with the tires pumped. They are still quite supple since the rubber compound is pretty soft. There's a belt below the tread that's pretty puncture resistant but even so, they flats I've gotten were glass. Last week I was riding home and got a shard in there that was doing its "thump thump thump" until I got off an literally dug it out with a knife, no flat... I used to race when I was younger and I think I'm just more used to hard tires, habit if you will. When it's wet I'll drop the pressure a bit but it hardly rains out here anymore... Cheers