I remember there being some hesitancy to add that since it wasn’t on the historical device. That reverse side is actually the reverse side from the American “is was” slide rule, or at least very similar to it. The reverse side of the historical German attack disc had lead angle tables instead. I personally have nothing against adding it though. I’d just make a note in there if they do that it wasn’t historical etc.
Another option is Sub Buddy, a mobile app that has a historically accurate attack disc and also a T/S/D side. I made all the tutorials in it and consulted on it, but I did not do any of the coding etc., that was a very talented member Elphaba here on Subsim.. And I don’t reap any of the benefits of its sale, but just highly recommend it.
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