Tie it to something else. My enhance uses Earth Shocks

Code:
/castsequence [@party1target, exists][@target] reset=target/5 Flame Shock, Earth Shock, Earth Shock, Earth Shock, Earth Shock
My resto uses Lava Bursts

Code:
/castsequence [@party1target, exists] [@target] reset=target Flame Shock, Lava Burst, Lava Burst, Lava Burst
Since you're elemental and you have different needs for those spells, try using something else, like Unleash Weapon or a series of LB like in the original post.