I had some drills removing and replacing weights in water at the surface. For the drills I just used a weight belt. I just released my crotch strap first... removed the weight belt and then replaced the weight belt. Then reinstalled the crotch strap after. That worked. We were not allowed to remove a few weights at a time and put them back in, etc.. It was complete "ditchable" weight removal and replace.
Anyway... I am super pleased with the DUI weight harness that I have used since those drills. It works very well, and is extremely comfortable carrying the weight. I recommend anyone to try one.
As far as snagging one of the large pull handles, and dumping some or all of your weight at the wrong time in the wrong place...... I think you could figure out some way of modifying the pull handles if that were a concern.
I was actually standing on deck with my DUI weight harness on.... fully weighted (20 lbs), and forgot I had my weight on. It was that comfortable. It does a good job of distributing the load to your shoulders instead of your hips and back.
The adjustment in the DUI weight harness allows you to easily drop the weight pockets to a comfortable level below your BP harness. You can also adjust the weight distribution for trimming.
All in all.... very happy with the DUI weight system. I have the latest/newest version.
I could see where having your weight on the BP harness belt (Halcyon or Dive rite integrated weight systems) would/could be a pain trying to get suited up. Unless you installed the weights into their pouches after you were suited up and strapped in to your BP harness. Not sure that would be the way to go.