That does sound like a lot of weight in the pockets. If I'm diving cold with a lot of neoprene or a dry suit, and have to get up to the 24 lb or so, I like to wear a belt with about 10 lbs, then put another 5 on each side in my dumpable weight pockets, and a 2 lb in each of the rear non-dump pockets.
Now I'm using a Zeagle, so there are no pockets to fall out, or clips that don't work right etc.... It's one of the reasons I like their weight system, I don't have to carry spare pockets like we do with the other brands... But whatever system you're using, I might think getting some of that out of the pockets would be a good idea... and maybe even off your body entirely. If you dropped 15 lbs and didn't realize it, there is a small chance you might be slightly over weighted....