A lot of factors come into this topic.First of all you wont see many dogs that will take a hare on two or three turns.Now and again yes.So what do we put it down to.Is it the ground the dog has worked most times,Training,breeding,The dogs abilty to learn,Daytime,Lamp.Been in the game 35 years and i still cant work it out.Think i know most of the pros and cons.But in the end i think its all down to luck.And knowing how to get the best out of any dog.