Here's another one. Probably not best practice at all but....
I have complete trust in Bru'n Water as I do not own a pH meter.
As long as you are adjusting for the base Malts distilled water pH in your water sheet I'd say this isn't a bad thing.
Bryan has tested our water software in our spreadsheet about 50 times now and it shows results within 1/100th of a pH point every time.
We integrated a "malt override" cell that allows you to match the distilled water pH of the malt found in the analysis sheet.
I don't own a pH meter either but seeing brew session after brew session being verified with that kind of precision gives me comfort knowing that if my Colorphast strips are in the ballpark that I'm dead on.