I dive a Seaquest Pro Unlimited and my wife dives the Diva LX, both have Surelocks. The advantages over the velcro systems are: appears more secure I have not heard of anyone losing a surelock (if used correctly), you hear a decided click when the weights are installed (very reassuring), we find it easier to remove and install than the velcro (I hate when I attach the weight pocket to my Henderson via velcro contact), little/minimal maintenance (the velcro tads should be cleaned to prevent excessive wear and tear). That all I can think of right now, its not even 10am. One note, we both use hard weights in the pockets, they are easier for us to use.
