With enough tai chi practice each practitioner discovers that we have an affinity for a particular skill or technique or style. We discover what we are really good at. Some of us are good at being heavy, some at being light, or fast, or big, or little and so on. In China some people are even given nicknames for what distinguishes them and they are known for that particular ability. This affinity evolves naturally from practice and once you discover it your practice will grow. It could take years.