I had considered that. My current Aqualung Dimension (back-inflate traditional BCD) currently serves me for all my diving, so I was thinking about trying to keep it to one plate.
See, I am the opposite, I want some ditchable weight no matter what. When I'm in the setup you describe with my current BCD and an HP 100 / 12L steel, I am slightly negative with no weight. I think I would be about neutral with an aluminum tank, so I'm worried about being negative even with the aluminum plate, since presumably the plastic in my current BC is slightly positive.
Interesting. I have not used a weight belt much outside of training, preferring the integrated weights on my BCD for convenience. It seems too easy to lose a weight belt. And in any case I wouldn't want to have more than 10 lbs. ditchable, preferably less. I don't really have a choice now but am considering if I should rig up something like this:
I've been looking for a decent way to add weight to my backplate for use with drysuit, heavy undergarments, and a single tank. After reviewing commercially available options I was thoroughly disappointed: 1) Steel backplate. Cheap way to add an extra 5 lbs, but this isn't enough. 2) Tank...
scubaboard.com
It would be able to work with rental weights if I was ever cold-water diving. Thanks for your help, Eric, I appreciate it.