We have a barrow that weighs 268 lbs with 14 days til show. In the past 11 days, he has gained 38 lbs on 2 lbs 611, 0.75 lbs Heavyweight, 0.75 lbs oat groats, and 4.5 gr Paylean twice a day. How can Inslow him down without crashing him?

I hear a lot of talk about "popping" pigs the day before the show. Any suggestion on how the maximize the top shape?