Not for the fat & floaty people.
Some days when I use just ten pounds, I have issues when I'm down to 1000 pounds.
If I can stay somewhere for a week, and dive daily, I'm able to drop some weight. But right now I'm just a vacation diver, and I'm not able to at the moment. Going to Roatan this summer. I'm hoping that when it's all done, I'll be able to drop a bit more weight.
Unfortunately, when you aren't diving for a few months at a time, it's hard to keep the lead off when you go back. I'd say it's darn near impossible.