I'm planning to play this game to only get Ending C with only sleeping with Baz to increase the LP (no masturbation or anything else, 'date' with Baz in dungeon can be considered). Any suggestion on managing the in-dungeon lust value? The mints dry up too fast to keep up

I tried running one floor per day but somehow it doesn't register the checkpoint, I think I'm missing an info somewhere on this.
Also, is the sleeping with Baz CG randomized based on furthest save file? the one where Maget sleeps closer to Baz as the LP increases.