ZzzKing
Contributor
Not an expert but neutral means that it is easily moved by any current, or eddy, or nudge.
Actually, neutral means it doesn't sink and it doesn't float. A nuclear sub can be neutral and I bet it doesn't get pushed around too much by a little current. What you need is more mass to resist outside forces. The additional weight would need to be offset by additional buoyancy measures of course. If you have ever seen one of those 360 degree omni theater type underwater cameras, they are HUGE! Bet they are pretty heavy too but they are neutral.