Re-read the reg copied below. Your understanding is off. It seems pretty clear as written in the regulation. When I see "head with antlers or horns attached to carcass" I envision a situation where an elk or deer was killed near some farm and they use a front end loader or equipment to hang the animal whole and start processing it. If you have to quarter the animal whatever it is, and detach the head, there better be evidence of sex attached to a hind quarter.
1.It is illegal to have or transport a big-game carcass without evidence of sex
naturally attached. It is illegal to have only detached evidence of sex accompany
the carcass. If you submit a deer or elk head for CWD testing, leave
evidence of sex on the carcass.
2. EVIDENCE OF SEX IS:
A. BUCK/BULL:Head with antlers or horns attached to carcass; or testicle,
scrotum or penis attached to carcass.
B. DOE/COW:Head, udder (mammary) or vulva attached to carcass.
C. BLACK BEAR: Male: testicles or penis.
Female: vulva.
3. Heads detached from carcass are not adequate evidence of sex.
4.If a carcass is cut in pieces or deboned, evidence of sex needs to be attached
to a quarter or another major part of carcass. All portions must be transported
together.
5. Evidence of sex is not required if a donation certificate accompanies less
than 20 pounds of meat or after the carcass is cut into processed meat,
wrapped and frozen, or stored at licensee’s home.