Question for Monk: Form Shift utility

honestly, the only use I've noticed out of Form Shift is using the ability pre-battle.

before a battle i just Form Shift 3 to 2 times to get to get to the Coeurl or Raptor stance, and the first hit on an enemy instantly activates Greased Lightning(Coeurl) and whatever status effect depending on the attack.

is this the only use for the ability, or is there any other way to utilize the ability?

Frequently during fights with downtime phases or you have to leave the boss for a mechanic, it's beneficial to Formshift and advance your combo to ensure that you don't lose Greased Lightning.

It's actually incredibly useful.