I had very little air in BC while on that dive. If I could have dropped additional weight, it would only have been a couple lbs. On my second dive I used an AL80. Added a few lbs, and was able to maintain good trim.
This particular dive was in a spring. At times I wanted to be facing the surface/ceiling. Worked great then! :)
Having a constant roll to one side or the other, while trying to remain horizontal, face down, is not something I’m willing to accept. I don’t want to be kicking to stay in trim on a drift dive.
I’ll experiment in a pool. My best guess so far is that I will need more weight (or move existing weight) at my belly/chest...for ballast/keel. The additional air on my back should keep that side up. Sort of defeats one of the benefits of a steel tank though.