With Approval was trained by Roger Attfield, who was inducted into the Canadian Horse Racing Hall of Fame in 1999 and the American Hall of Fame in 2012. With Approval was known to the racing public as the "Cardiac Kid" for being involved in a number of close finishes. His handlers though called him 'Snoopy'. "He was always a very inquisitive horse and he'd love to stare around all the time and that's how he got the nickname 'Snoopy'," said Attfield in a later interview. "He was just a very inquisitive horse and the more the years went by the more he got to be that way. To get him from his barn to the paddock we'd have to leave a long time before we needed to because it took forever to walk him to the track. Every hundred yards he'd want to stop and look and if you tried to chase him on he'd get really annoyed."