large bodies are cool, but then again the bigger they are the more they need to eat, so they will cost you a little more to feed each year. Many of the deer in pens grow much larger than a wild anyway, but If i were to breed an extraordinarily large bodied buck to a doe, the one thing i would want to make sure is that she is a big girl herself, if you breed big buck to a small doe there may be problems for her with birthing.