For those of you who participated n the water poll and are interested in the results: They have, as the votes trickled in, been pretty consistent in indicating that about 2/3 of those who answered use R/O water. I was surprised by that result. If you want to see the detailed breakdown or if you haven't 'voted' go to:
https://www.homebrewtalk.com/f128/how-many-use-ro-di-390288/
https://www.homebrewtalk.com/f128/how-many-use-ro-di-390288/