Decisions Decisions

So I am wanting to have a herd of Thoroughbreds with the Cr gene (mostly buckskins). Currently I have two studs used for my breeding program, one palomino and one chestnut. And I have two colts just weeks from breeding age, one smoky cream and one buckskin. And since breeding chestnuts to get any of the colors I want is all but impossible, I am thinking of getting rid of my chestnut stallion once the smoky cream stallion turns 10. But the chestnut is my highest statted horse (that I have ever owned) and I am having an internal conflict on selling him.

Would anyone like to weigh in and help me make this decision??

Chestnut
Smoky Cream