Yeah I noticed that so long as Aero III gets it's full ticks, it's the highest potency spell you have. Otherwise, it's not very efficient to use. I will definitely try using Assize and Fluid Aura after Aero, during GCD. I like that idea a lot! I have been trying to use more of Presence of Mind for Stone III as well. Definitely makes a difference. But yeah, I think i might stick with Swiftcast + Stoneskin II, unless the tank is the only one without it. Thank you all for the tips!