Keepitcovert - Very good points mate, I watch my lurcher, and my whippet running, and he has a faster running action, and yet she covers ground quicker. I put it down to stride length, power etc.
AAron - I agree that you can't really compare them to a lurcher in many ways, but i've seen plenty of 22" lurchers. Obviously with the right lurcher you will get a lot more stamina, durability etc. But many lurchers have no more than my whippet. He's easily capable of a few nights on the bounce 20-40 runs a night (we don't have enough rabbits local to run more), and I imagine could do a fair bit m