I'd say it's about personal preference when you pop your buffs.
Personally, I like to pop them at the start of a fight during my rotation so I can use them throughout the fight as often as possible.

My opener for most fights is ToD -> Perfect Balance -> Demolish -> BfB -> Snap Punch -> IR -> Snap Punch -> HF -> Twin Snakes -> Steal Peak -> Dragon Kick and while it's probably not the most optimal opener to use, I personally prefer it the most so I'm ok with how it works for me~

Sooo, you just gotta find something that suits you the most basically :3