We burned our Holstein calf's horns last year. We bought the electric burner and just followed the directions. Put her in the chute (she was about 3 mos old; horns were tiny nubs at that point) I held her head with a halter/lead rope. My dh did the burning. It smelled bad, but we made sure we got them good so there would be no scurs and so we wouldn't have to repeat it. They look lovely now.