right. 2x a week for a month and you'll have 1 or 2 lessons left for the next month, depending on what day the month ends. both shanxi and hebei have retreating strikes; i don't know much about shanxi but advance/retreat linking form exists in both styles, where you learn to generate force while moving backward as well as forward. in terms of technique, strategy, etc i can only claim ignorance by and large when it comes to henan.