Hexham type Blackfaced tup
Scotch type Blackfaced tup from Stirling and a South Country Cheviot tup
The bluefaced leicester crossed onto a blackface or swaledale sheep produces a breed known as a mule which is the mainstay breed used by lowland sheep producers. Thousands of mule ewe lambs are sold every back end through Hexham mart, they will be crossed with terminal sires such as suffolks or texels to produce prime fat lambs.
The millenium blue (cross between blue de maine and texel) and the texel are crossed onto almost anything to give a good fat lamb, although these two will be used for pure breeding by a farmer with better ground which carries texel ewes.
So there you go - food for thought - because ultimately that is what these boys will be producing - food.