Only single model sites we work with require exclusivity. We get so much traffic off model name searches that we would lose if the model only received exposure on our site. We would take a big hit if we required exclusive access. However, we do advise many of our guys which places to avoid, because if they are not shot right it can devalue the name.

As for life span, an upper level guy, rather than a head liner probably has a longer life span. Too much of a good thing is not always better.