Erhm... just to clarify. There are already 9 photographers and need 7 more for the next model to appear. That means either
16 photogs (min) to 3 models - average 5/6 photogs per model (reasonable)
15 photogs (max) to 2 models - average 7/8 photogs per model (seems a bit too crowded)
I may sign up for the 1st case but not the 2nd. Cheers.