Yes, Thanks Martin for the info. And to everyone else who offered help here.
I spent a couple hours last night attempting to correlate what I had done with early batches using the very early free version (I saw it said v1.4 in the spreadsheet I opened last night). I attempted to transfer info from those early batches, 1 5gal and 1 10gal, into the subscriber version I have used ever since. It wasn't seamless, there were a few things that calculated slightly different. But it was pretty close.
I also saw variations in the free version water inputs vs the subscriber version inputs, indicating to me maybe I paid for 2 water reports back to back within the month where I tried the free version till I paid. But my saved emails do not indicate that. They were all-but-identical, but I don't understand why they were not completely. For instance, 7.3 vs 7.0, 9 vs 10,
![Huh ???](http://www.homebrewersassociation.org/forum/Smileys/default/huh.gif)
I did not take note of how many beers I had when I typed that stuff. Maybe that's part of it.
Doing a quick search on my work PC today, I find that Martin sent me a new copy of Bru'nWater in 2018 which I've never used... So I looked at the email archive and yep, 10/7/18, there it is... Well, I wasn't brewing then. I only brewed once in 2018 due to my work schedule 7daw, so that obviously got saved and tossed in my brewing files, email archive, and promptly forgotten. Not the end of the world, my earlier copy worked fine too.
So, I'm trying to go through old batch notes, brew day procedures and water adjustments, to better understand the cause and effect of some of these changes I've made. I can already see some correlations of taste notes and pH targets, and now starting to understand how some of my misconceptions affected the outcomes (good and bad). So things will definitely be different going forward. For better or worse. lol.