$15/head premium for raising Niman hogs???

That's nuts.    I mean you'd have to be nuts to do it for that.   


Out of curiosity, what market do they use as their base price?   
Iowa/Southern MN?     Western Cornbelt?      Eastern Cornbelt?    Cash Index?    % of the cutout market?   Something else?

 And are there any other grade/yield type of premiums?