I agree tomo. Most places we go, from arable, scrub, to pasture, you won't be catching many rabbits at all, if you run some of these collie types. Even alot of half crosses have been found lacking in basic speed. Alot of rabbits, especially on arable where they've been run a couple of times on the lamp, f**k me, some of em are indeed like little rockets, and unless your dog is very fast, they aint catching, simple