I am doing research on the Bombe Machine, and I read that when the Bombe tries to find the stecker (plugboard) partners of letters, it only needs to use the rotor types and arrangement and also the "rotor core offset," which is just a combination of the rotor positions and the ring settings.
However, the ring setting does matter. If the 1st rotor position is A and the ring setting is A, the core offset would be the same as if the rotor position was B and the ring setting was B, but the 1st rotor output would be shifted down a letter, which would produce a drastically different output.
So, how do they account for that? I don't see how neglecting the ring setting is fine.