Does anyone have any experience with brewing water profile calculators? I have used three different calculators and came up with three completely different water additions. I first used the desktop version of BeerSmith 2, then used Bru n' Water (which I ultimately used) and finally used the brewer's friend calculator. As I am new to building water profiles I have no idea which one of these calculations would be correct. I got a water analysis from Ward Laboratories and know exactly what my base water profile is, but building from here is leaving me at a loss. Any help would be much appreciated!