My partner installed a double end bag at the club. He's a consumer and finds it necessary to have everything. Well, I don't really know because I fought without one, but that doesn't necessarily prove anything. Maybe, everyone who beat me worked on a double end bag. Well, probably not. I also I don't like the speed bag because I find the lazy gym-rats just abuse it. On the positive side I think it can develop hand eye co ordination and timing (after the work out of course).

OldTownBoxing