I had a Image Maker son a few years back. I really liked his calves. I don't remember them coming early. I do remember his switch getting flipping at about 4 years old. He went from being a puppy to flat out being dangerous.
OK, this was the bull I thought you might be talking about. I used him a couple of times, probably about seven years ago. Based on my records I don't see that the calves were born much earlier than their expected birth date. If you bred him to a first-calf heifer, I would probably start watching for signs of calving around 14 days before the expected birth date. That is just my standard protocol. If you need help with some of the things to watch for, we here on the forum can offer help. Best wishes and good luck!
Ok thank you all for your responses . Yes all my girls are first calf heifers . I have there calving pen all set up so now it's just a waiting game getting really excited but nervous at the same time hopefully everything goes as planned