Quick update on my little experiment. I stopped dosing for a month and just started back up 2 weeks ago. My zoas continued to do good and nothing closed up during the "off" month. I did have a gradual nitrate increase from undetectable up to around 5+ ppm over the course of the "off month". I started to get a patch of cyano on my sandbed and a little on a few rocks. I continued to do weekly 15% water changes using Seachem Reef Salt in 0 TDS RO/DI water. During this last 2 weeks of dosing 5-6 ppm, my nitrates have dropped to around 1 ppm and the cyano is almost gone.
I am really starting to think that at least one of the advantages of dosing pure sodium ascorbate is that it dose act as a carbon source feeding denitrifing bacteria. The signs and symptoms of vodka, sugar, vinager dosing are almost identical to sodium ascorbate dosing. The bacterial bloom encountered when overdosing vitamin c is the same and the reduction of nitrates and phosphates is the same.