Your advice here is contrary to that given by the vast majority of health professionals in fasting supervision, over the last 200 years.
You may be experienced and know a great deal, but then so do some of us here, including myself with over 32 years of study of the fast and nutrition, and having undergone 2 prolonged water-only fasts myself.
You opinion and experience here does not conform to the majority of professionals who have vast experience themselves with the fast and its supervision.
Advice on juice-feasting or juicing is not relevant to the subject of the forum.