[Theleb]

I said UA > Corr > SB Spam on trash ;p The full rotation you mentioned is the way to start a Boss fight IMO.

UA as tank is puilling (GCD takes up part of the cating time so you get UA and Corr landing straight after each other) SP Spam until Mob hits the floor.

Or even go with Corr and SB Spam to trigger Nightfall procs.