Grow Crusoe or Feed Wheat

[Fat hen]

For the last 6-7yrs been growing Crusoe WW usually for low grade milling (N about 170kgha). Usually get about 3.5t/ac. Best has been 5t/ac, this year only 2t/ac. Our light land is 3-3.5t/ac tops. So I get about £12/t premium on LG milling.
Would I be better off growing a feed variety? How much better are the yields on clay than say Crusoe?

 

[snarling bee]

I say you grow feed, and let me grow the milling.