one of my friends (12 yrs. old) races a done up 300ex..he went ridin with us the other day..he had his razr tires on it..but he said when he races he uses turf tamers..so i could understand that..but he also said that turf tamers are better than any other tire out there for anything..he said they will go thru mud good and sand, gravel, etc..i dont agree..what do you think?