i have a bottle of wildlife research center select doe urine

that i bought last year soemtime between novof 2006 and jan of 2007

that has not been open. Is it still good. I have always been told to only usethis years urine. It does say on it exps 01/09

will it be ok to ues this year and is these brand any good

and it says it is effective all season so is it ok for early oct bow hunting