We "built" our line of curs from old timey "white" bulldog stock. Those straight bulldogs made damm fine close range wind,find,stop, and hold dogs all by themselves. Hogs or cattle. I keep one right now that will gather,bunch, and pen cattle as well as any one of my curs. Lots of leg and fairly decent lung. Running "catch when needed" dogs in the purist form in my opinion. Where I'm from, we don't go to the pasture to walk dogs on leads.