2B+K, 66A+B is not guaranteed, I don't think. 2B+K, FC 1B is. After 2B+K hold 1 and mash B, should work every time. I get a LOT of damage from 2B+K, FC 1B. All of Amy's mids are super good, and most people with be very careful about ducking into them when she is at advantage.
BT B+K, 1KA...