Quote Originally Posted by Hornypony View Post
What I noticed, the films sold increase as the girl gets bettter (I do not know if due to more films filmed in one session or due to stamina). Of course, the films needed for each level increase too, and faster at that. The game autoselects the lowest lvl position for you but due to quantum effect (ha ha) the output in stamina might be 0 for lower lvl position and 1 for higher position. Example: pos1=0 of 90, pos2=50 of 100, films sold=80. That give 0 stamina on pos1 but 1 stamina on pos2. And if next lvl of pos2=30 of 110, it still gives 1 stamina with 85 films sold.
Leveling does not depend on movies sold directly, it depends on room where movies were shot. First room gives 500 exp, second 25% more (625 exp), third 50% more (750 exp),... , last room that costs 100 gems according to description is 350% more (2250 exp). So you always gain same exp per session if you use a girl in the same room.

At level 58 skill requires 1.2k exp to progress so to gain 1 Stamina from it you need to have at least 2 sessions in the third room.