His racquet is strung with Luxilon Big Banger Original 16 String at a relatively low tension ( 50 - 52 pounds ) .
Coria currently uses the Head MicroGel Radical Pro .
Coria 's racquet is strung with Luxilon Big Banger Original 16 String at a relatively low tension ( 50 - 52 pounds ) .
Coria currently uses the Head MicroGel Radical Pro .