My static does a different tactic to both give longer conflag times and more of an ability to isolate the potential damage. We have our WHM stoneskinning the entire party besides me as the MT, setting up our SCH and SMN pets directly behind Twin, and then the rest of the party splitting into two groups near either side. Whoever gets fireball targeted moves to the pets, the pets laugh at the fireball damage, and even our weakest member survives thanks to the stoneskin. The only times that this particular strategy hasn't worked has been when, say, someone gets fireballed, then conflagged right away, then as soon as the conflag was broken, they were fireball targeted again and getting stoneskin back up and their health back up didn't happen fast enough. But those are rare bits of "RNG doing RNG things" timing. Otherwise, this method keeps the rest of the party very safe. At worst, one person needs to be rezzed. At best, only one person needs to be topped back off.