| There is no such combined method, we cannot do that |

| The overall method is n-th order, since we just use the n-1 order method for few initial points |

| The overall method is of the order n-1, since the initial error from the lower accurate method remains in the cummulative error (global) |

| The order of the method could be either n or n-1 |

| The order of the method is something between n-1 and n, just like the RK 45 method |