Quick little tip that I found raiding on my monk.
If you want to start out any raid boss with 5 chi pre pull to avoid using any jabs when the pull begins, do this.
1. Use Expel harm
2.Use Spinning Fire Blossom Repetively
3. Use Expel Harm after its off CD and continue spamming Spinning Fire Blossom
5. Use Expel Harm 3 times while spamming SFB in between
This works because Spinning Fire Blossom consumes Chi when used but RETURNS the Chi if an enemy target is not hit, so it will drop the Chi and then return it instantly, resetting the "diminishing Chi" timer that makes it diminish out of combat after a certain period of time.