Thx d0 a lot for finding new sales for me (which all of them turned out to be outliers but the more proof, the better!)

Sale 1

http://www.tf2outpost.com/trade/22206685 - Sold for a Sunbeams Chieftain's Challenge (7*0.9 = 6.3 buds)

Mini for Sunbeams Chieftain's Challenge

http://backpack.tf/vote/id/5404440f4cd7b839148b4b93

Sale 2

http://www.tf2outpost.com/trade/21430153 - Sold for a Strange Professional Killstreak Festive Rocket Launcher + 1.4 buds (2.5*0.9 + 1.4 = 3.7 buds)

Mini for Strange Professional Killstreak Festive Rocket Launcher

http://www.tf2outpost.com/trade/22117554 - Sold for a Purple Confetti Exquisite Rack (3.5*0.9 = 3.2 buds) but has BO of 2.5 buds.

Sale 3

http://www.tf2outpost.com/trade/21796152 - Sold for a Miami Nights Team Captain (Outlier)

Feel free to counter / support my proofs.