The night before a show I don't feed or water my calves, just give them hay. Then, on show morning I pull them in from tie-outs and give them a bath. After the bath I let them drink as much water as they want. I give them their regular feeding, once they eat that I combine Full Tank and Beet Pulp and give it to them without watering the Beet Pulp down. Then, I let them eat as much as they want up until last call to head to the holding area. 10-15 minutes before the show I let them drink as much water as they want again and keep putting feed in front of them. This seems to work well for me.