About a year ago when I bought my house I purchased an xxl wavemaster standing punching bag, for fear of damaging my house (and my wife vehemently protested another bag in the garage). Either way, about 3-4 months later I finally got a MT hanging bag and an uppercut bag mounted in my garage. Since then the xxl has been reduced to a speaker stand and collects dust. We just recently listed our house for sale (2months ago) and the realtor asked that I take down the hanging bags, so I did. Back to the xxl for my at home bag workouts. I had noticed that in my sparring sessions (prior to training with the xxl) when I got my opponent backed up into the wall, corner, cage....etc. I would start to throw combos to keep him pinned but always ended up crowding myself and losing my power/range, usually finding myself in a clinch. Since I started using the ole xxl, with 300pds of water and sand in the base really doesnt move at all! (yeah I know some of you tough guys knock them over with your jab.....whatever). I also realized in my sparring that I got much better at keeping my opponent pinned when throwing combos. Also, it has helped me to develop a great high or low roundhouse kick when jumping out or moving backwards. The damn thing actually is good for something! Any other practical uses you have found from using this type of bag? Other than speaker stand or tackling dummy?