I’ve read through this thread a few times and I think I must be missing something as I cannot see how units stacked one behind the other can carry out a legal charge in this way. From the rules for multiple charges I am assuming that both charging units must be able to make a legal charge before either unit is moved. If the first unit is just withdrawn 1" before the charges are declared then surely the second unit cannot manoeuvre around the first and into contact with the same facing (unless it is nimble)?