I have kept and worked both ,the lurchers and pure breds ,without a doubt if ye want to breed a bit more grit to the lurchers wheatens are the way but if ye want a pot filler that will do the odd fox a beddy x might be more suitable ,but talking of the pure breds an average wheaten would be as good as a great beddy if it was for working large quarry,but i have seen some bad wheatens that where worse than bad beddys but they should not be bred from to create lurchers or pure breds,but my choice would be wheaten x once it was a good one and it was bred from the right stock