We raise calves we buy from a local dairyman and have been taking them to the vet for castration, although my husband used to band them. Questions: How soon should we band? When is, "Too late, dude! Now you need to cut!"? Which do you think is best, banding or cutting? (We are only working with one calf at a time--not a herd to castrate. And they are generally 4 days to a week old when we gat them.) And--how important is the tetanus shot? We have never done that.