actually from what i can see now is, organisers pay to CS like a form of advertising their shoots. then models are employed by them.
If say we use evo's theory, then we would be deemed 'double' charging. And models might wanna take even more shoots to cover the initial cost. Then another round of who pay more will arise... and all these cost will go back to the photographers. and then the organisers will have lesser earnings when models demand more. then they promote more shoot, then lesser ppl participate and you'll see organisers cancelling shoots due to low participation. another point is, you might see 50 to 1 model kinda shoot... u want?
As for the money part, i guess i leave it as it is now... afterall, i just hope everybody have fun shooting... if the models cmi, please drop them, if the organiser sucks, just go join another shoot... we're here to have fun, not to broad over all these human resulted misery.