HPI X Pattern Tires

Are the X Patter Tires good? Will they last and do a good job of gripping.

I have a pair. Great tires. Last long, and grip almost too well.

Take a look at the HPI B15-40s. They're slicks but will provide better traction and wear than the X-patterns in just about any condition. The only advantage the x-patterns may have on the B15-40s is on dusty surfaces, but who want's to run on dusty surfaces anyway?

thanks a lot