Being mostly a PvPer, I don't raid much, but when I do dungeons or raids I sometimes change seals depending on situation~
If I'm pulling a big group of mobs, I'll start off with SoR; then switch to SoI most of the time.
For boss fights, it really depends on healer. If they are good, I'll keep SoT on, if they're not that good, SoI it is~