GLA <25 and keeping enmity

[Sadana]

2) Use [Fight or Flight] as often as you can. It's a massive help in the early levels for hate generation. Along those same lines, you can also pick up [Internal Release] and [Raging Strikes] as cross class skills to help your hate generation.

Would I pop FoF just after I open or wait a few hits since that is when I start losing aggro?

I have Raging Strikes since I had to level ARC to unlock BLM. (Use it often. <3 ) Internal Release though, I'm unfamiliar with, which class has this?

eta: Actually, to my great embarrassment, I don't think I have Raging Strikes on my crossbar. ^^; I'll have to fix that.