Got a Tiger Woods out of a X-ray vision shorty cow last nite. She was 8 days over. 90-95 lbs, came unassistied got up and was sucking away. I will say tho this cow is always 5-10 days overdue and has a large calf. If I had not known that info I would have induced 3-4 days ago when her udder was filled pretty decent. When in doubt induce and do it about 5am so you have the best chance of her calving during day. Takes 24-48 hours. Did a cow earlier this month and she had twins right on the money 48 hours later. Tiger Woods calf is very thick and hairy. Can't wait to see how he turns out. GOOD LUCK with yours!