Found an awesome combo using breakables next to walls, all guaranteed. So long as it's not on HCH, you hit them into the breakable object, then...
:4::K: > :4::h+k: > BT :4::K: > :2::p+k::P::P::6::P::6::P::4: > :P::P::6::K::K:
So yeah, all guaranteed (even on fastest stagger), TONS of damage...