Does catstrating them make them any different,is if so,what all do they stop doing?
Physically, it stops their combs at wattles from growing large and red, so they have the head of a hen; they also grow a few pounds larger than a unaltered rooster. They still grow those beautiful feathers, though.
Personality-wise, it mellows them out. They act a lot like hens - they walk horizontal like a hen, not upright, and they don't crow or cackle; they don't mate or fight either, and they are more mellow and easier to handle than any of my roosters.