Standard Opener

In most cases, use this:
-3s Pre-pull Current Tincture of Mind
-1.5s Pre-pull Glare III
PULL
Dia
Glare III
Glare III
Weave: Presence of Mind
Glare III
Weave: Assize
Glare III
(etc.)
This opener uses both PoM and Assize under raid buffs, Assize is weaved under PoM which can cause clipping even at moderate ping, in most cases this will not be an issue.
(To view the image full size click here.)
Swiftcast Opener

PRE-PULL
-3s Current Tincture of Mind
-1.5s Glare III
PULL
Dia
Glare III
Glare III
Weave: Swiftcast
Glare III
Weave: Assize and Presence of Mind
Glare III
Glare III
(etc.)
This opener uses swiftcast to double weave Assize and PoM under raid buffs and has less risk of clipping, but will leave you without swiftcast in the first minute of the fight.
(To view the image full size, click here. )
GCD Rotation Planner
Looking for an advanced tool to plan out your rotation for a fight, compare openers, etc.?
https://bit.ly/whmrotation