I'd love to lean out my upper body in addition to building strength and am thinking of adding in more kickboxing/boxing type workouts. I love Hard Strikes and KPC and am thinking about buying today's deal of the day: MMA Boxing. I would like to avoid building my lats too much though and don't have a heavy bag (I need to try the HS heavy bag bonus without a bag which I think works for some people.) Any thoughts/results (specifically upper body related) from anyone who's incorporated more kickboxing/boxing workouts into their rotations? I appreciate it!