american racer 28.5/bt-15 md-56 crate late spec tires? any good

[hakuld]

american racer 28.5/bt-15 md-56 crate late spec tires? any good compared to open competition 28.5 bt-15 md-56,i noticed the tread depth isnt as deep as open tire or as wide,does anybody know how good these tires work on dry slick abrasive track vs regular open competition md-56 bts or raintread md-56