On a mirror map, it makes sense to adjust your gameplay based on your opponent. For example, if you are certain that they won't rush for the Castle in the dragon lair (secondary dungeon) at 121, then you don't need to rush for it either. I remember, in the final of the Bay Cup against GoD on a mirror map, I decided not to rush for 117 to get the Castle in the dragon lair, arguing that GoD definitely wouldn't rush either, so there was no point in me losing. But, for example, against Samurai, I would rush without hesitation, because he would definitely rush, so I need to as well. And if it doesn't work, we both lose, but Samurai will be the one to give up. After the game, it turned out that the spot, although not ideal, was still viable, and that GoD indeed didn't rush for it.