8B+K ~ G ~ AA[BE] is Leixia's Best Post Guard Burst Combo Starter.
There are 19 Ways To Break for 8B+K ~ G ~ AA[BE]
FC 3B, WS B, 66B, 66BbB (Guard Break Only), 22_88B, 1A After Both Single & Double 6BA After STN, 1B After Single 6BA After STN, 3B+K After Both Single & Double 6BA After STN, 4B ~ 1A, 4B ~ 1B, 4B ~ 3B+K, 6A+B ~ BackDash ~ 1B+K, 6A+B At A Certain Distance ~ 1A Break, 6A+B At A Certain Distance ~ 1B Break, 6A+B At A Certain Distance ~ 3B+K Break, 33_99BB ~ 1B+K, & FC A+B (Wall Only).
Hm, I think if you construct specific situations after certains moves on hit or so, there might be endless combinations for this combo to work. The setups after the 6BA with 1A or 1B are ok, but how often does one hit the opponent with 6BA in a stun?
8B+K works after FC3bB, too. Not practical though.
There are also mistakes in your list. Breaking with FC3B doesn't give 8B+K combo, at least not against everyone. And the setups with 3B+K don't work against the whole roster either.
I think the best ways to initiate this combo is to break with 22B or 66B, because
- it works against everyone
- it is not range-dependant
- they are good moves by themselves which are likely to be used (unlike 66BbB or 6BA in a stun) and getting blocked
But it's not a must to break with those moves to use her GB well.
With 22B, 66B you get the 8B+K combo.
With 44K, WS K, 1B+K, 3B+KK after launcher you get the 44[A] combo.
With 3B, 6A+B, 2B+K (and some character specific ones like FC3B) you get the 1A ~ AA combo.
So as long as you break with any of these the damage is alright, especially with a wall behind your opponent which would always speak for a 44[A]/1A combo.