So you are switching from light and dark arts to manifest klimaform and accession voidstorm for the party?
I also keep enlight on for the bit of accuracy to help land KoR.
yes I usually DA>Manif>klima the least. Once when we zone in and buff, once right before Aminon pull, then 1 more time, during Aminon. Unless we are at a dead stop to redo songs then switching out of LA for klima is probably not worth the time. I just try to get as much buffs on them as possible to keep their Savage damage as high as possible. Every bit helps.
I manually just storm the bard/cor(usually) throughout the run. Ill save accession for stoneskin, and for erase to get bind off to get us moving faster. Regen is prebuffed from a SCH for the first 20~ min, its the annoying duration one to have to keep up. between holy circle and the /drk circles that another buff to keep on at all times also.