No, I wouldn't pick one of those for a Saison, although, a Saison being a pale beer, the water profile isn't necessarily going to be too different. I suspect most people wouldn't notice much difference in something with as much character as a Saison. You can create your own Saison profile in BeerSmith. Just stay within the suggested ranges and you won't go wrong. You might want to tweak things in subsequent brews to hit your preferred spot, but it's most likely going to be within the suggested ranges. Looking at my notes, I got the water profile from Murphy & Son and I was happy with it.