I am not too sure why the concern for the feathered / smooth gene. Have to confess my total ignorance here I had previously thought the smooth recessive...
More to the working angle - the reason the saluki greys are great hounds is the combination of the fat muscle from the grey that gives the short bursts of speed, combined with the sleek thin muscle structure of the saluki that gives athleticism and stamina.
More gratuitous photos
One smooth deer grizzle one feathered black and tan