To put speed back in the line
If they go Saluki, Saluki , Saluki, they end up with almost pure Saluki and lose the speed the greyhound originally gave the line.
Even when a Pure saluki stud is used, the bitch will undoubtedly have some greyhound blood.
They don’t expect a first cross Greyhound / hybrid coursing dog to be world beaters, it’s about freshening up the line, putting a bit speed back in.
mC seems to think all that’s needed is saluki and the greyhound had no influence on the type. His dogs may be fast, but that’s from their greyhound heritage, not the saluki, he