If that's at me Kevin then, without taking anything away from my bitch, I think the pup will be. Due to the breeding of my pup she hunts in a completely different way. It's difficult to explain the difference without making my terrier sound bad because she's not - far from it.
If this explains it then it's as if the terrier bushes out because she wants to get to the fun at the end (I.e. the quarry) and the bit where she gets prickled, stung etc. etc. is the only way to get the desired result bit. On the other hand, the pup bushes out to get the end result but also because she loves bushing