Yes, thank you. I have compared and to me they seem "suitable" but I can't say that I really, truly understand what makes something a suitable alternative. I never really fully understood why certain vegetables were restricted and others not, so I don't entirely trust my own judgment.
Since it seems that no one else has ever used them, they may not be.
After looking thru 3FC via "site:3fatchicks.com protizyme" (suggest you use this to search for things at 3FC rather than use their search feature since it never works for me) in my google search, I found one thread, although protizyme is not discussed, it seems to be okay for the most part since no one came in and rebutted.
Success is not final, failure is not fatal: it is the courage to continue that counts.- Winston Churchill