I think they were a little over confident on how well this tour would do when booking the venues. I know the Copps Coliseum show got moved to the Sound Academy in Toronto, and Copps Coliseum was already using a scaled down seating setup.
04/01 - Mindless Self Indulgence
04/05 - Kataklysm
05/10 - Mastodon/Gojira
05/12 - Down