From what I've head, Code Blue uses the SAME doe for the whole bottle. Other brands tend to mix estrous doe urine and then pour into bottles.
That said,,, wal-mart was out of CB so I had to get Tink's estrous scent yesterday. Never tried it, but hoping it works.
...and on that day when my strength is failing, the end draws near and my times has come, still my soul will sing Your praise unending, ten thousand years and then forevermore!