Yes, spine-c has keyable draw order now, so spine-cocos2d-iphone also does. What do you mean nothing changes? Oh, I see CCSkeleton was using slots and not drawOrder to render, should be fixed now. I haven't gotten to testing and refactoring spine-cocos2d-iphone yet, need to do events in spine-c first, which includes refactoring AnimationState (see latest commits).