any % of bull as long as its well bred and up and able for the job in hand!!! lets face it, this % lark isnt spot on, why do thay have so much diffrent sizes in litters? some have bigger heads? some are racey, some are stocky all from the same bred litter... lets face it like an early post said, -90% dont use a bullx for its intended use, and why add saluki?? thats like adding lemonade to a nice pint of lager...its not a kind of thing a real man would do!!! i run from 1/4 to 3/4 bulls both have the intended jobs and do them very well!