I normally hate doing High-tier hats

Sale 1

http://www.tf2outpost.com/trade/24807784 Sold for 3 buds + 7 keys

X = 3 + 0.6

X = 3.6

Pure http://backpack.tf/profiles/76561198042866413?time=1423325479#page0

Brigade http://backpack.tf/item/326185866

Sale 2

http://www.tf2outpost.com/trade/24527927 Sold for Duped C. Heart Trilby

Brigade had no trade, presuming offered

X = 3.3

Trilby http://backpack.tf/item/346509709

Brigade http://backpack.tf/item/326185866

Mini for Trilby

http://www.tf2outpost.com/trade/24925899 Sold for Duped GE Fro + Bearded Bombardier

B/O for Fro was 3.5

Trilby was offered on Fro

X = 3.3

Fro http://backpack.tf/item/273123116

Trilby http://backpack.tf/item/346509709

Bombardier http://backpack.tf/item/3329406539

Mini for Fro

http://www.tf2outpost.com/trade/24963564 Sold for Searing Belt

B/O for Fro was 3.5

X = 3.7*0.9

X = 3.3

Belt http://backpack.tf/item/241085455

Fro http://backpack.tf/item/273123116

Sale 3

http://www.tf2outpost.com/trade/23452170Sold for a Max + 12.6 keys in sweets

B/O for Brigade was 55 keys (3.6)

X = 3.3 + 0.8*0.9

X = 4

X = 3.6 (B/O)

Everything http://backpack.tf/profiles/76561197969553710?time=1420851088#page0

Brigade http://backpack.tf/item/326185866