I did one more for the Pokemon Conquest group shot, but not as big as this one. It's interesting, but definitely relies on a great backdrop to begin with. And also fixing the exposure per shot (i.e the sun flare in certain photos will make them look like silhouettes). I'm sure we can work around that but I'm not a pro.
Well, since everyone was jumping the Brenizer bandwagon on Fstoppers at one time (including some of your recent kick arse works) ... why not? LOL. It's not as hard as the tutorials made it out to be. Photoshop Photomerge FTW!