currently winter diving with AL80, SS plate . . . . I find I am foot-heavy. I can't move the tank up any farther without it hitting my head. Unless than a trim weight on the tank bank, are there any other options?
I have a 2/3 wetsuit with a 5mm hooded vest. The vest adds a lot of bouyancy it seems. Also I need less weight on my right side or I turtle to the right for some reason.
I am going to make a suggestion that might seem a bit at odds with the many suggestions that are being made in this thread. But, I really believe it is a 'better' approach than merely asking for help here.
Find someone - an experienced diver, an experienced Instructor, whomever - to get in the water with you. Perhaps, they can bring a video camera, and evaluate what you actually look like (not what you 'feel' like) in the water. Have them observe you when you achieve neutral buoyancy and stop ALL movement - no finning, no sculling, just let your body seek its natural position in the water, even if you are foot down or head down, even if you 'feel' you are foot down or head down, even if you are, or feel that you are, rotated 45 degrees to the right, or 60 degrees, whatever. Right now, we are offering advice on the basis of what you say you feel like, not what you actually look like - and please don't take that as a criticism, of you or anyone who has offered suggestions.
We can sit here and throw out lots of suggestions, and you can spend a lot of time chasing your tail while following them. But, it seems that - at a minimum - you need to conduct BOTH a proper weight check, and a proper evaluation of weight distribution, and have someone actually look at you while underwater. Frankly, from my armchair, I don't think you are 'foot heavy', I think you are 'torso light', with that 5mm vest. But, that's my opinion from afar. The better way to address the issue is by having someone observe you first hand, underwater, and work with you to tweak your configuration is several ways to figure out what works best.
You mention feeling that you need less weight on the right side. That could well be true, and there is no 'rule' that says you have to evenly distribute your weight on both sides, particularly if the weight in your rig is not symmetrical. The need for differential weight distribution could reflect the 'interesting' configuration you pictured in the other thread - with your computer clipped on your right side. Yes, something that presumably trivial could affect your lateral trim.
My recommendation is in no way a criticism - of you, or the other who have made a suggestion. Rather, I am always a bit concerned with supremely confident 'diagnosis from afar', whether I make that diagnosis or someone else does.