Trading is tough, you know! ;-0
I like to use the CO for divergences, but I would never trade just off the CO. I need something else, and that "something else" is usually a CCI pattern and/or support and resistance.
You know that if you have a 50% W/L ratio and the winners are slightly larger than the losers, you will make money. You can also make money even if your losers are much larger than your winners, as long as you have a high W/L ratio. More than one way to skin a cat.