technique with the leather ball? i play cricket in an u-16 league...i'm 15 yrs old...i also enjoy playing street cricket using tennis or rubber balls...i play on concrete and the bounce of tennis and rubber balls on concrete is vastly diff. from that of the leather ball on a normal pitch...so i was wondering if playing street cricket like this will affect my batting technique when i play with the leather ball in matches...help pls? thnx