How long till you would breed to monopoly?

[Warrior10]

I have a very moderate and powerful sunseeker x mainex heifer that is Due in may to Fat Tony. I am itchin to breed her to monopoly but don't want to ruin her, planning on breeding her to Carpe Diem this spring.  In what year would you guys even consider breeding her to monopoly?

 

[chambero]

2nd calf is fine

 

[furinsilex]

for me id do calf number 3. If you are wanting to be extra safe.