We just had a Carnac daughter deliver her first heifer calf in Nov. She had a nice Rocky Balboa calf unassisted and has been a good Momma thus far. We were a bit concerned that she did not appear to have much milk as she moved closer to her due date, but more came quickly. She still does not appear to have an overabundance of milk, but has enough that the calf is thriving. We're very pleased with the heifer calf. She's coming along nicely. The calf was delivered two days before the expected date. Good luck to you.