330 ele issues

I am using a 330 ele build on HM to farm the luxon assassins from the Halcyon Job. I'm using this build.
http://pvx.wikia.com/wiki/Build:E/Mo_330_Elementalist
And for my optional I have healing breeze because the necros like to degen you. For some reason there is a time when right when I casting SF aura there is about a whole second of time where I am receiving a limited amount of damage from each attack.
Its only like 5 or 7, and 13, but when 20-25 assassins are pounding you that is too much.

I have 280 health using a totem axe and the standard monk offhand for an extra -50 health to counter morale boosts. I have 1 earth magic, and 10 protection. I'm casting them in the right order, I even tried using glyph of elemental power to push SF aura to last 17 seconds instead of 16, nothing is working there is still that small gap.
What am I doing wrong?

Testing it out, but I may have answered my own question. It seems by dropping Protection prayers to 10 It has been causing me to cast prot spirit too early, and there is a 3 or 4 second gap where I am being affected by SF aura and THEN Prot spirit.

Quote: