That's not bad. Very similar to my water. Your pH is entered at 6.5 but you thought it was higher? If it was higher it would have taken more acid to get into range.
Anyway. Seems like a lot of acid to me but I don't use phosporic. Then again, I'd never cut my water with RO or anything else for a beer like this. Did you buy the RO or do you have a system? That water could be a variable. The store RO machines are wildly inconsistent from what I've heard.
Everything appears to be entered correctly in brunwater. So like I said earlier in the thread, based on my experience with brunmater if the data entered is correct you'll be pretty darn close to 5.5 pH.
If you have concerns about brunater email Martin. I'm sure he'd respond. He used to be on here often and chime in water related threads.
So yea I just saw the total alkilinity and calcium. Way higher than mine. Anyway, I guess I'm back to questioning your water report if your pH is ending up so much lower than brunwater predicts.