I've done a couple exclusive contracts for models I wanted to develop. In the very beginning I tried percentages a couple times as well.

When I tried percentages on an exclusive contract both models, down the road, opted out of the percentage deal for a lump sum payment.

The easiest, cleanest way, is to do a 6 month renewable contract for a set amount of money. Be as specific as possible in the contract (without describing specific sex acts) so the model knows exactly what to expect with no surprises. Younger talent can't fathom being tied down for a year, or longer.

Hope this helps :bunny: