Original sentence: Although they appear to the inexperienced eye to be rather small and lightly-built for sleddogs, actually they are far more efficient pullers than some larger northern breeds.Colours and markings are considered of little importance; eyes may be brown, blue or any combination of the two colours.It is a moderate-sized breed averaging 40 to 50 pounds weight and 22 or 23 inches height.Seppalas show a primitive canine type, never having been bred or selected for beauty or for the show ring.The breed shares its ancestral base with the Siberian Husky (SH) and for half a century shared the same registry with that breed, but was bred always exclusively as a working sleddog breed in its own right and kept apart from show bloodlines.They are capable racing sleddogs, particularly in mid-distance events, although perhaps not as speedy as world-class Alaskan huskies or pointer-crossed hybrids
Edited sentence: A moderate-sized breed averaging 40 to 50 pounds weight and 22 or 23 inches height, Seppalas are probably the mostly highly developed purebred sleddog breed.Although they appear to the inexperienced eye to be rather small and lightly-built for sleddogs, actually they are far more efficient pullers than Alaskan Malamutes or Canadian Inuit Dogs.Colours and markings are considered unimportant in this exclusively working breed; eyes may be brown, blue or any combination of the two colours.In the dogsled racing hierarchy they occupy a position well above most Siberian Huskies and just below the best world-class Alaskan husky racing hybrids.It shares its ancestral base with the Siberian Husky (SH) and for half a century shared the same registry with that breed, but was bred always exclusively as a working sleddog breed in its own right and kept apart from show bloodlines.This is a primitive breed, bred and selected only for its working purpose, never for beauty or for the show ring