Yep, its dropping too.

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Sellers @ 4 Refined & below

Backpack.tf

http://backpack.tf/classifieds/search/%20Powdered%20Practitioner

3 @ 4 Refined

1 @ 3.11 Refined

1 @ 3 Refined

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Sellers @ 4 Refined & below

Outpost Sellers

http://www.tf2outpost.com/trade/12303003

http://www.tf2outpost.com/trade/12304652

http://www.tf2outpost.com/trade/12300039

http://www.tf2outpost.com/trade/12302181

http://www.tf2outpost.com/trade/12299170

http://www.tf2outpost.com/trade/12300712

http://www.tf2outpost.com/trade/12303551

http://www.tf2outpost.com/trade/12303159

http://www.tf2outpost.com/trade/12299778

http://www.tf2outpost.com/trade/12176895

http://www.tf2outpost.com/trade/12170528 ( 0.75 keys, basically 4 Refined)

http://www.tf2outpost.com/trade/12301700

http://www.tf2outpost.com/trade/12250830

http://www.tf2outpost.com/trade/12303224

http://www.tf2outpost.com/trade/12306237

http://www.tf2outpost.com/trade/12304900 (3 Refined)

http://www.tf2outpost.com/trade/12300104 (3 Refined)

http://www.tf2outpost.com/trade/12249989 (3 Refined)

http://www.tf2outpost.com/trade/12307134 (3 Refined)

http://www.tf2outpost.com/trade/12309657 (3 Refined)

http://www.tf2outpost.com/trade/12309869 (2 Refined, sold)

Bazaar.tf

http://bazaar.tf/trade/286275

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Unsold @ 5 Refined

http://www.tf2outpost.com/trade/12305900

http://www.tf2outpost.com/trade/12142458

http://www.tf2outpost.com/trade/12124833

http://www.tf2outpost.com/trade/12272040

http://www.tf2outpost.com/trade/12304509

http://www.tf2outpost.com/trade/12298364

http://www.tf2outpost.com/trade/12256785

http://www.tf2outpost.com/trade/12303129

http://www.tf2outpost.com/trade/12297792

http://www.tf2outpost.com/trade/12297936

http://www.tf2outpost.com/trade/12300739

http://www.tf2outpost.com/trade/12300529

http://www.tf2outpost.com/trade/12300840

http://www.tf2outpost.com/trade/12300565

http://www.tf2outpost.com/trade/12302186

http://www.tf2outpost.com/trade/12301940

http://www.tf2outpost.com/trade/12306348

http://www.tf2outpost.com/trade/12300102

http://www.tf2outpost.com/trade/12300901

http://www.tf2outpost.com/trade/12284073

http://www.tf2outpost.com/trade/12260634

http://www.tf2outpost.com/trade/12282312

http://www.tf2outpost.com/trade/12300685

http://www.tf2outpost.com/trade/12289477

http://www.tf2outpost.com/trade/12301298

( Yes I know some of the links are a couple of hours old, but since the yesterday's update, people are trying get rid of these as fast as they can)

Looks like most people selling under 5 Refined are trying to sell these @ 4 Refined or cheaper since the new crate is out.