Has anyone else noticed the Mini collections in the Gun Mettle items?

Like in the Powerhouse collection, you have the Thunderbolts (Shell Shocker etc) and the Lightnings (Black Dahlia etc)

Sale 1

http://www.tf2outpost.com/trade/27154782 Sold for Aces L' + 2 keys

KaW had no trade, but clearly wasn't offered

B/O for Aces was 13

X = 2 + 11.5*0.9

X = 12

Aces http://backpack.tf/item/3569311423

KaW http://backpack.tf/item/3285797446

Keys https://gyazo.com/86ef2e9e619ebf8846cbb8afa3eb1d6b http://backpack.tf/profiles/76561198124977762?time=1443928190&compare=1443769200

Mini for Aces

http://backpack.tf/vote/id/56109845b98d880d25cc1b96 11.5 keys, using 11.5

Sale 2

[No OP Trade] Sold for 15 keys

X = 15

Keys https://gyazo.com/c27ee8d8f8d48aa74e17b773245bb65e http://backpack.tf/profiles/76561198149592463?time=1442646000&compare=1442818800

L' http://backpack.tf/item/3285797446

The histories do not show the buyer, but the ids are within 3k of eachother (Damn close)

Sale 3

http://www.tf2outpost.com/trade/27036763 Sold for 14 keys

B/O for L' was 15

X = 14

Keys https://gyazo.com/360b3383c03b273b6cb5b5f39b916b3a http://backpack.tf/profiles/76561198031371895?time=1442559600&compare=1442473200

L' http://backpack.tf/item/3285797446

Seller

http://www.tf2outpost.com/trade/27160507 14 keys