My perfect z turn would be
2. adjustable deck size
3. loackable casteres, steerable casters for hill mowing
5. solid core tires
6. remote grease fittings anll in 1 place.
7. deck that will not clump in wet and leave stragglers in weed lawns
8. built in hitch
9. built in chute blocker
10. built with ALL AMERICAN MADE COMPONENTS.