I was playing in an ASA league last night and was informed by the umpire that my Easton Salvo (SRV5) was illegal because it has the old 2004 ASA stamp and not the 2013 stamp. I am looking on the USA softball website and it shows the SRV5 under approved bats. Is there something new this year that ASA bats with the old stamps are outlawed? Am I OK to use the Salvo? I haven't played much the last couple years and haven't kept up with bat rules. Thanks for the help.