Not to be too harsh on hunt terriermen but if it goes to ground almost anything will do the job on the day and most pros carry a selection for different jobs .Bolters were often other peoples failed digging dogs ,I know I gifted stuff to the hunt that didn’t really have what it takes to do the job regular .50% does seem a bit low Glyn but I’m guessing your being modest on that .Seems to be more and more getting out the game as time goes by these days ,even youngsters .