I'll test this after work, but in terms of how I play my commando, and how I usually open it might be a good idea to open with plasma grenade in the pull and strike it from the normal rotation.
The reason for that is it's cast time is affected more by spell delay if you take damage while casting, and also there is a travel time before the mob Aggros you, and that travel time is enough (if cast from far enough away) to finish a cast of grav round.
I would say that plasma grenade should probably only be used in the pull, and only if the mob is strong or greater.
The reason for that is it's cast time is affected more by spell delay if you take damage while casting, and also there is a travel time before the mob Aggros you, and that travel time is enough (if cast from far enough away) to finish a cast of grav round.
I would say that plasma grenade should probably only be used in the pull, and only if the mob is strong or greater.