Saison D'Hiver Part Duex

This morning, I checked the gravity on the Christmas Saison, Saison D'Hiver and found it was 8.2 Brix. Now, if ProMash and BeerSmith are right, my beer is at 1.036, waaaay short of 1.018. But if BrewMath on my iPhone is right, it is at 1.006. According to the refractometer spreadsheet from MoreBeer.com, it is 1.005. Who to believe?

This matters because I also bought a vial of Belgian Abbey yeast in case I needed to dry things out.

I tasted it, and it was slightly sweet. But I did use a pound and a half of sugar in it.