What do you think of his lines?

Two M Chief Bluestock Paint

9 year old Sorrel Overo APHA Stallion should I geld him or breed him?

You can't tell from bloodlines if a horse should be cut or not. What has he done? Show us some pictures. Bloodlines are just names on a piece of paper until he does something to prove them.

If he is the satlly in you "barn," geld!!!!

From the one side shot you have of him in your pictures, I'd say please geld him.