I have just started it and i love it. I have a speed bag and a heavy bag which make for a great cardio on non HIIT training days. I actually have an entire day for a boxing workout involving lots of puch ups, chin ups, crunches, speed and heavy bag, and jump rope. I was wondering if anyone with more experience in this area could give me advice on what my routine should be made up of and how often i should do it. Thanks!