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I don't know if anyone is interested, but Maternus uses Saturn-Venus for male charts, and Mars-Venus for women. The passage can be found in p. 222-223 (Bram trans.), or p. 393-394 (Holden trans.). The two Lots are given different names.

Also interesting is the formulation of the Lot of Substance. In Dorotheus' fifth book on elections, the Lord of a house/planet signifies how an event ends, while the house/planet itself shows how an event starts off. (I believe this association is implied in Valens, though not explicitly stated.) This Lot seems to be "from the end to the beginning". :) Intriguing.
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The appearance changes, but the essence remains.