The place to find these was eBay over the past few weeks, but it looks like it's all over now for this season. There may be some sellers still sitting on these and they'll show up again next year, but I wouldn't hold my breath. The Machete line will be 2 seasons past next year and probably even harder to find.
I loaded up at the end of this season for pennies on the dollar. So now I have a pair of Souls, a pair of FBs, and 3 pairs of Sins. I wanted some spares for when I bend them!
BTW - Some of you may know that I now have a habit of measuring the dimensions of the skis I get to check them against the manufacturers' advertised numbers. My Souls are actually 110-70-97 (very different from the 109-72-99 advertised). My Sins are a bit narrower underfoot (79mm vs. 81mm) than advertised. The FBs were exactly as advertised.