Last year Dive Rite changed the design of their integrated weight pocket for the Transpac II by now having a double flap closure and a stiffener in the material. They claim that it is more stable. Has anyone had the chance to try these newer pockets and compare them to the older "softer" version. I wear 10 lbs of lead shot in each pocket of my "old" design and they do tend to sag a bit. I'm wondering if the newer design would be more stable and worth the price of "upgrade". Thanks.