Personally I always liked no bondage since I prefer the Bull to use his brute strength to control the wife. Looking at pics, I started to prefer medium to light bondage. Thinking bout it more I like a wife being resistant(roleplaying of course) and therefore put in heavy bondage. As she becomes more comfortable, bondage is slowly removed. Maybe she's always kept in a collar. Of course the cuck should be in heavy bondage. Or as bondage is removed from his wife it is placed on the cuck.