Proof:

Classies:

http://backpack.tf/classifieds/search/id/525734554dd7b8737e8b4567 (1 at 4 ref, 2 at 4.33, lots at 5 ref)

Outpost:

Unsolds:

5.66 ref:

http://www.tf2outpost.com/trade/15088435 (<1 day)

http://www.tf2outpost.com/trade/15001348 (4 days)

http://www.tf2outpost.com/trade/15072052 (1 day)

http://www.tf2outpost.com/trade/15094146 (<1 hour)

http://www.tf2outpost.com/trade/15092768 (<1 day)

http://www.tf2outpost.com/trade/15071962 (1 day)

http://www.tf2outpost.com/trade/15006743 (4 days)

http://www.tf2outpost.com/trade/15043835 (2 days)

5.33 ref:

http://www.tf2outpost.com/trade/15087206 (<1 day)

http://www.tf2outpost.com/trade/15072166 (1 day)

http://www.tf2outpost.com/trade/15090776 (<1 day)

http://www.tf2outpost.com/trade/15081800 (<1 day)

Selling:

5 ref:

http://www.tf2outpost.com/trade/15044479 (2 days)

http://www.tf2outpost.com/trade/15034350 (3 days)

http://www.tf2outpost.com/trade/15047658 (2 days)

http://www.tf2outpost.com/trade/15086753 (<1 day)

http://www.tf2outpost.com/trade/15066232 (1 day)

http://www.tf2outpost.com/trade/15090619 (<1 day)

http://www.tf2outpost.com/trade/15090081 (<1 day)

http://www.tf2outpost.com/trade/15088559 (<1 day)

Market is flooded at 5 ref but not many sellers below that. 5.33-5.66 ref is no longer possible.

Thanks for voting : )