Thabo Sefolosha was at about the same point in his career when the Thunder extended him. He got 4 years/14 million. More recently, Milwaukee gave Luc Mbah a Moutie a 4 year/18.7 million dollar contract that started higher and declines every year. I think Aminu is at about the same point as these guys were, so I would be fine with 4 years between 14 and 18 million. I especially like what the Bucks did with Mbah a Moute's deal, and would like something similar where Aminu's contract declines each year so that it is small when it is time to pay Davis and re-sign Anderson.