The reason the urine guys get early estrus urine is not because of early doe cycling. Does dont cycle that early, fawns would be born too early. Urine collectors induce the cycle with implants and hormone shots, like CIDRs and PMSG, pregnant mare serum.

Just for an interesting aside, when bighorn sheep fight, the looser doesnt drop down to next-best status like a whitetail. He actually drops all the way down to the lowest rank in that bachelor group, and needs to fight his way back to status. Once he loses to the dominant ram, hes then false mounted by all the other rams, as a way of showing their dominance over him. Trust me, this stuff IS real.