please stop using geirskogul after combos 1/3/5. you are shooting yourself in the foot here with the placement of your second geirskogul. there is a 0 damage increase by using it after 3 and it's simply better to cast it after 4 granting you ~3 extra seconds margin for error.

the only time you should use geirskogul after combo 3 is if mechanics dictate it or you are trying to get 2 under blood for blood.