This gets back to the fundamental problem with weight systems: You want something that will retain the weight securely when it is desired to retain it, and release it rapidly and easily, when it need to be jettisoned.
Personally, the only time I envision dropping weights is with a distressed diver on the surface, and I don't want to be within reach of a panicked person long enough to open a Fastex clip AND reach into the pocket AND try to wiggle out a 5 pound weight. Opening the clip can be done quickly, and the weight will fall -- or at least, one hopes it will.
I'm a victim of the plural of anecdote not being data, but after 10 years and over a thousand dives, I have yet to drop my weights or anybody else's, but I have LOST a 5 lb weight during a dive, and that was a major PITA on ascent. So I would vote for something like a DUI Weight & Trim harness, to separate your weights so they aren't all on your rig, and retain them pretty darned securely until somebody is really determined to remove them. That is assuming you are unwilling to look at a weight belt at all -- I use a rubber one with a tongued buckle, which holds my weights securely but WILL release easily when required.
Personally, the only time I envision dropping weights is with a distressed diver on the surface, and I don't want to be within reach of a panicked person long enough to open a Fastex clip AND reach into the pocket AND try to wiggle out a 5 pound weight. Opening the clip can be done quickly, and the weight will fall -- or at least, one hopes it will.
I'm a victim of the plural of anecdote not being data, but after 10 years and over a thousand dives, I have yet to drop my weights or anybody else's, but I have LOST a 5 lb weight during a dive, and that was a major PITA on ascent. So I would vote for something like a DUI Weight & Trim harness, to separate your weights so they aren't all on your rig, and retain them pretty darned securely until somebody is really determined to remove them. That is assuming you are unwilling to look at a weight belt at all -- I use a rubber one with a tongued buckle, which holds my weights securely but WILL release easily when required.