As always, getting a decent pup from any litter is a lottery. Some well bred litters produce good and bad, and sometimes you get poor sire & dam coming together to produce some real crackers. But putting a good bitch & sire together gives you a better chance of getting a good litter. There are some excellent whippets out there and some equally matched terriers, and depending what your ground, quarry and entering is like, then any plummer, patterdale, borders etc etc will and could bring something to your hunting pack table.